How to Sculpt a Realistic Skull with Polymer Clay – Step-by-Step Tutorial | Cristopher Dino | Skillshare

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How to Sculpt a Realistic Skull with Polymer Clay – Step-by-Step Tutorial

teacher avatar Cristopher Dino

Watch this class and thousands more

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Taught by industry leaders & working professionals
Topics include illustration, design, photography, and more

Watch this class and thousands more

Get unlimited access to every class
Taught by industry leaders & working professionals
Topics include illustration, design, photography, and more

Lessons in This Class

    • 1.

      Introduction

      0:38

    • 2.

      Materials

      0:52

    • 3.

      Tools

      1:03

    • 4.

      Building the armature

      2:29

    • 5.

      Clay Blocking

      4:44

    • 6.

      Establishing Main Shape

      5:19

    • 7.

      Working on the nostrils

      4:14

    • 8.

      Working on the Cheek Bone

      3:47

    • 9.

      Working on the Tempo

      3:12

    • 10.

      Working on the Teeth

      3:06

    • 11.

      Adding Details

      2:33

    • 12.

      Texturing

      2:46

    • 13.

      Baking

      0:40

    • 14.

      Painting

      4:21

    • 15.

      Final Shots

      0:52

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About This Class

In this class, you’ll learn how to sculpt a realistic human skull using polymer clay — no prior experience needed! Whether you're a beginner looking to understand basic anatomy or an artist wanting to sharpen your sculpting skills, this class will walk you through every step of the process.

We'll start with a simple armature and gradually build up the skull's structure, adding realistic features and details along the way. You'll also pick up tips on proportion, symmetry, and tools to help bring your skull sculpture to life.

What You'll Learn:

  • How to create a strong and simple armature

  • Basic skull anatomy and proportions

  • Techniques for sculpting facial bones and features

  • How to add realistic textures and refine details

  • Tips for working with polymer clay and sculpting tools

By the end of this class, you'll have your own detailed skull sculpture — perfect for your art portfolio, character design, or just as a cool display piece!

Don't forget to upload your project — I’d love to see your skull sculpture!

Meet Your Teacher

Hello my name is Cristopher Dino from Philippines i've been making and designing toys for over 5 years.

Inspired by video games, movies, and iconic characters, I create a universe where imagination knows no bounds and every toy tells a story.

Making art toys gives me immense joy--it's like turning my wildest dreams into tangible, quirky creations that make people smile and spark their imaginations!

See full profile

Level: Beginner

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Transcripts

1. Introduction: Hi, everyone. My name is Chris. I'm an artist here in Philippines, and I want to teach people how to sculpt because I think the world needs more creations. If you ask any sculptor what you should sculpt or how to practice, almost all of them will tell you to sculpt the skull. So that's exactly what we're going to do in this series. But we're not just making a skull for display. Nowadays, people look for both aesthetics and function, so we'll take it a step further and turn our skull into a pen or tools holder. This way, it's not just a cool sculpture, but also something you can actually use. If this sounds cool to you, come join me in this class. 2. Materials: Following are the materials we will use for this project. Our main material is super scalpi clay. Super sculpiFirm is a tough gray polymer clay, perfect for detailed sculpting. It stays workable until baked, great for pros and hobbyists who want precision and durability in their sculptures. Next, we'll use a tin can and aluminum foil for the armature. Since we're baking the clay, we need materials that won't burn or melt. These are perfect for the job. For painting, we'll use aerosol cans, one for primer and another for the gold color. We'll also use water based acrylic paints for added details and effects. That's it for the materials. You can grab all of these in a single trip to your local art store. I'll also drop a link in the description if you prefer to order online. In the next video, we'll go over the tools we'll be using for this project. 3. Tools: Here are the tools we'll be using for this project. I have this sculpting pack. This pack comes with all sorts of useful tools, Baltylus, spatulas, and even fancy rubber tip tools. We won't need all of them for this project, but I still recommend this set for anyone starting out. You never know what you'll need for future projects. These tools last forever, staying in great condition for years. In addition to the sculpting pack, we'll also use a rig tool. This is simply a loop guitar string attached to a paintbrush handle. It's super easy to make and incredibly useful for refining surfaces. We'll also be using an additional wooden spatula and a wooden roller. The tool pack includes alternatives for both, but I've had these for a long time, and I'm more comfortable using them. So there my go to choice. And, of course, we'll need some paint brushes for painting. That's all for the tools. Now, let's get cracking on that skull, shall we? 4. Building the armature: Building the armature. Okay, let's get working with our skull. The goal of this step is to block out the main shape. We'll do this by wrapping our tin can with aluminum foil. Let's first drizzle some glue over the surface of the can to secure the aluminum foil in place. I'll start by taking about a foot long piece of foil. Pre crumple the aluminum foil so it's easier to shape when wrapping it around the can. We use a tin can and aluminum foil because we need to bake the clay to harden it, and we can't use anything that easily burns or melts. Plus, the can and foil help distribute heat evenly during baking. Shape the foil so that it becomes thicker towards the middle. Keep adding layers of foil until it's about a centimeter thick around the can. We'll also make the front and back slightly thicker than the sides. This blocking process helps us establish the main shape without using too much clay, allowing us to save material. There you go. As you can see, the front and back are about a centimeter thicker. Next, we'll indent a hole to prepare for the eye sockets. We can do that using the ball stylus tool from the tool set I mentioned in the materials discussion. I hope you guys didn't press the foil too much, so there's still enough space for the indentation. Mine is a bit tough, but I can still make it work with a little force. One of the most striking features of a skull is its oversized eye sockets. Without the soft tissues like muscles and fat, the bony structure underneath reveals just how much space our eyes actually take up. There you go, guys. The blocking process is complete. We'll start working with Clay in the next video. 5. Clay Blocking: Clay blocking. In this part, we're going to start wrapping our armature with clay. Simply press large lumps of clay onto the armature. We're aiming for about half a centimeter of thickness all around. You can slap sheets of clay directly onto the armature, but I like to smooch the clay first before applying it. I feel like it makes it more compressed and compact, which helps avoid air pockets. If you're new to sculpting, polymer clay is one of the best materials to start with. It's soft, easy to shape, and doesn't dry out while you work. So you can take your time perfecting the details. Unlike air dry clay, there's no rush. You can keep tweaking your sculpture until you're happy with it. Another huge plus polymer clay hardens in a regular oven, so you don't need any fancy equipment. Once baked, it becomes super durable. Whether you're just starting out or looking to improve your sculpting skills, polymer clay is a fun, forgiving and beginner friendly way to bring your ideas to life. Keep patching it with different sizes and shapes of clay until the whole armature is covered. Skulls are hands down one of the coolest things to sculpt. They've got all these awesome curves, sharp edges, and deep hollows that make them super fun to shape. Plus, you don't have to worry about making them look too perfect. After all, every skull has its own unique character. Another reason they're great. You can go in so many directions. Want a realistic human skull, go for it. Feeling spooky, make it eerie and cracked. Want to add some fantasy vibes, throw in some horns or exaggerated features. Skulls are like the ultimate sculpting playground. After the entire thing is covered, we'll focus on leveling the thickness and filling in any deep areas. Now, we will blend all the patches of clay together to create a smooth, even surface. Press the clay in a rolling motion using a round tool for smooth and effective blending. I'll switch to a spatula tool to spread and smooth out the clay. Let's be real. Sculpting is a bit of a workout. You're squishing, pressing, carving, and smoothing, and by the end of it, your hands might feel like they just ran a marathon. Maybe not that intense, but you get the idea. But that's what makes it awesome. Every bit of effort goes into bringing your creation to life and the best part. You see the progress with every little detail you refine. It's labor, sure, but it's the kind that leaves you feeling proud, not exhausted. So let's keep going and make something epic. Now, I'll move on to a flat tip brake tool and start raking in different directions to remove the raised areas and even out the surface further. Using the bowl stylus once again, I'll refine the eye sockets and smooth out the details. After more raking, I now have a smooth and even surface. That's it for this part, guys. I'll see you in the next one. 6. Establishing Main Shape: Establishing the main shape. Welcome back. In this part, we'll be establishing the main shapes of our skull. I've had a lot of success starting with the forehead when sculpting faces. So let's try it on this one. Let's prepare a sheet of clay and fold it over to increase the thickness. Now place it on the forehead and trim it to match the proper shape and size. Using the same technique from the earlier video, press the clay in a rolling motion to blend the added clay seamlessly. Looking at our reference, the eyes are much larger and have a shape similar to aviator sunglasses, so we need to expand them a bit more. Before shaping it, we need to draw an outline to use as a guide. Then use the bowl stylus to push and expand the eye socket, following the outline as a guide. There you go. It looks a lot better now. After that, we'll start building the snout. To do this, prepare an elliptical cylinder shape from a separate lump of clay. Prepare it in proportion to the size of your skull to make sure it fits naturally. Then cut it sideways across the narrow side. Place it horizontally centered just below the eye sockets, then blend it into the main shape. Continue refining it using the tools and techniques we've already learned, smoothing out the edges and shaping it to match the skull structure. At this point, you'll probably start to realize that sculpting is just a cycle of three simple steps, blocking, blending and smoothing. And that's pretty much all there is to it. Master these three techniques and you'll be able to create all kinds of awesome stuff. That's it for this part, guys. Next, we'll move on to sculpting the skulls nostrils. Stay tuned. 7. Working on the nostrils: Working on the nostrils. Let's get cranking right away. Prepare a cone shaped piece of clay, making sure it's in proportion to the size of your skull. Then cut it at a slight angle just like this. And also, flatten the side that will be merged with the skull. Place it at the center, then blend and smooth it into place. Use your fingers as much as possible for a smooth blending. Only switch to tools for areas that are too narrow or hard to reach. Two. Two. Now it's time to dig in the nostrils. Once again, we'll start by drawing the outline as a guide. We'll draw an upside down hard shape. Make a deep cut along the outline, then carefully carve out the clay inside. Then use a smaller boll stylus to push the clay inward and deepen the nostrils. Push only the sides, leaving a partition in the center. This will form the vomer bone which separates the nostrils. There you go, guys, with the nostrils in place, it's really starting to look like a skull. That's it for this part. See you in the next one. Mm. 8. Working on the Cheek Bone: Working on the cheek bone. Now it's time to add the cheek bones, also known as the zygomatic bones. Let's build up the structure and give our skull more definition. To do that, follow along with me and prepare the following shapes. The first shape is going to be a long strip of clay with tapered ends, one end slightly longer than the other. Then we need two smaller strips of clay both the same size. And also a small round piece. When your pieces are ready, place each one as follows. The biggest piece will go under the eye socket with the shorter end starting at the side of the nose and the longer end curving around the side of the skull. The two smaller strips go vertically under the longer one and on the sides of the eye socket. The round piece will be placed on top of the long strip to add mass to the cheek bone. Now it's time to blend all the shapes together. I'm also going to add another small strip that connects the cheek bone down to the jaw. We'll prepare the same shapes and repeat the process on the other side. Sculpting is all about patience. Sometimes things don't go as planned. You might smooh a detail, carve too deep, or just not like how something turns out, and that's totally fine. The great thing about clay is that you can always start over. Mistakes aren't setbacks. They're just part of the process. Every time you redo something, you're sharpening your skills. So if something isn't working, don't stress. Just squish it up and try again. On the next part, we'll focus on the tempo. It's going to be interesting, so stay tuned. See you there. 9. Working on the Tempo: Working on the tempo. In this part, we'll refine the shape of our skull by adding details to the tempo area. Let's bring in more definition and structure. First, we'll add a snake shaped piece of clay just like this. Then, of course, we'll blend and smooth it. The fun part about sculpting a skull is that it's super forgiving when it comes to mistakes. Skulls are naturally imperfect. They have all sorts of inconsistent crevices, cracks, and unusual shapes. So even if something isn't perfectly symmetrical, it just adds to the realism. You really can't go wrong. 50 Follow along and make a cut along the side of the eye extending through the side of the cheekbone. The goal is to make this area slightly deeper, cut at a slant and carefully carve away the excess clay. And then smooth it out to soften the sharp edges and create a more natural transition. If the steps aren't clear, don't worry. I'll go through the process again on the other side. That's it. For this part, guys. Next up, we'll tackle the jaw and teeth. This is where things get really fun. See you in the next one. 10. Working on the Teeth: Working on the teeth. Now it's time to add the teeth. I'll take advantage of the concave shape of my wooden spatula tool to press in shape the teeth. This makes it super easy to get that natural curve. First, I'll mark the position of each tooth. Okay. Then I'll define the curvature of each tooth, making sure to carve out the natural grooves and separations between them. Next, I'll soften the sharp edges made by the spatula tool. Using another concave tool from the toolset, I'll carve lines on the top jaw between each tooth to define them further. I'll soften the shapes again with the rake tool. Sculpting isn't just about shaping clay. It's also about telling a story. It doesn't have to be a whole novel. Take this guy, for example, he's been dead for a while, exposed to the elements, so I don't want him to have a perfect Hollywood smile. Instead, I'll knock out a few teeth to establish the narrative. There you go, guys. Our skull is really coming to life now. Well, figuratively speaking, in the next part, we'll add even more details to make it look even cooler. Stay tuned. 11. Adding Details: Adding details. Let's add some details. First, we'll give him a slight glare by adding clay to the outer tip of his eye sockets. This small tweak will give him a bit more attitude and personality. Using any pointed tool will add some cracks to the skull. Like I said, this dude has been dead for a while, so a few cracks will make him look even more worn and weathered. I suggest looking up some references online to see where skulls usually have cracks. This will give you a better idea of where to position yours. Cracks are part of the skulls story, so it's up to you to decide where to add them. Skulls have these wiggly lines called sutures. Simply draw them with your pointed tool to achieve that natural organic look. All the cracks are in place. Up next, I'll show you how to add some texture. Stay tuned. 12. Texturing: Adding texture. For the texturing, we'll stamp the clay using stones. First, we'll use one with inconsistent bulges to create rough, natural looking indentations. Then we'll switch to a finer grain stone to add subtle texture. Wrap the skull with plastic wrap before stamping to soften the imprint slightly. Then start randomly pressing the stone all over the skull, creating natural looking imperfections and surface texture. Take a look at the result. Now we'll switch to a finer grain stone. But this time, be more targeted with our stamping. Focus on areas where natural wear and tear would occur like the forehead, cheek bones, and around the eye sockets. To next, we'll brush the entire skull with lighter fluid. This will dissolve the surface of the clay slightly, softening everything and blending all the details together. That's it for this part, guys. Our sculpture is finally complete. In the next part, we'll move on to baking the clay and bringing our skull to its final form. Stay tuned. 13. Baking: Baking the clay. Here I have just a regular toaster oven. I usually cover my sculpture with aluminum foil to avoid direct heat from the heating rods. I want the heat to circulate inside and bake the clay evenly. I'll bake it at 180 degrees Celsius for 10 minutes. After letting it cool down, our skull is now fully cured and hard as a stone. Now it's ready for painting. See you in the next one. 14. Painting: Painting. Before we start painting, we'll need to prime it. This will help the paint stick better and give us a nice even surface to work with. Spray it from about a foot away in a smooth sweeping motion like this. This will help avoid buildup and ensure an even coat. Keep spraying until the entire skull is evenly covered. Make sure to rotate it as you go to get all the angles. Make sure you're in a well ventilated area when using aerosol spray. Even better, wear a respirator for extra safety. Now we'll apply a base coat using black water based acrylic paint. And. Next, we'll spray it with gold aerosol. We base coated it with black because black enhances the depth and makes the gold pop more vibrantly. Look how cool that is. The gold really brings out all the details we sculpted. Those cracks and textures pop so nicely. Next, we'll add some fake patina to give our skull an aged weathered look. This will make it feel like an ancient artifact rather than a freshly painted piece. To create the patina effect, we'll mix blue and green acrylic paint until we get that perfect oxidized copper look. Adjust the ratio depending on how vibrant or muted you want the patina to be. Dilute the paint with water to make it more running. This will help it flow into the cracks and details naturally, mimicking real patina buildup. Brush the entire skull with the mixture. Use a tissue paper to gently dab off most of the paint. Take a look at the result. Now, we'll dry brush it with copper to highlight the details and enhance the metallic look. Dry brushing is a painting technique where you use a small amount of paint on a dry brush to lightly graze the surface of your sculpture to execute it, load your brush with paint, and wipe off most of it on a tissue paper until only a faint amount remains. Focus on the raised areas to make the details stand out, giving the sculpture more depth and dimension. Et everything dry overnight to ensure the paint sets properly and achieves the best finish. 15. Final Shots: Final shots. And there you have it. Our skull sculpture is complete. From building the armature to adding the final touches of paint, you've brought this piece to life with your own hands. Sculpting is all about patience, creativity, and a little bit of experimentation, so don't be afraid to make mistakes and try new things. I hope you had as much fun as I did throughout this process. Keep practicing, keep pushing your skills. And most importantly, keep creating. Whether this is your first sculpture or one of many, every project brings you one step closer to mastering the craft. Thanks for joining me, and I'll see you in the next one. Happy sculpting. Let me show you the final shots.