This is another final phone case mock-up that I draw from this class. You can download 3 mockup files from my class: phone case, storage box, and children's dress. 

You can see that a very simple line or shape drawing with PaperbyWeTransfer (https://paper.bywetransfer.com/) can be a beautiful design for products. It's free, you can install it from AppStore and you will find it as an amazing drawing app.

In the storage box above, I only draw a circle, half-circle, ellipse, rectangle, and dots. Pink and orange are my favorite color combination, a beautiful pattern isn't ?

Above, I draw a half-circle, and unique form by zigzag your pen (or finger), and voila! it becomes a cute pattern for this children's dress.

Now, it's your turn! Can't wait for your project submission.