So I've going through this video and found a lot of things helpful but also got lost a couple of times. A lot of the periods where I was lost was when it came to figure drawing. I've taken a couple of art classes but none of it was on figure drawing as most of it was still life, and more general stuff. Also these classes were about a year ago so some things have gotten rusty as I've been doing more design type of work which doesn't always take real solid drawing skills.

For the first couple of rush sketches I tried to focus exclusively on the pose and not worry too much on making it perfect. At times I found myself making corrections I admit which actually ended up hindering the process.
I found doing the faces a lot easier than speed sketching poses. I also found my work looking better if I took time figuring out how to do the exact pose.
Nonetheless I persisted and found that my skills quickly improved when it came to figure drawing I found not worrying about the exact details to be the biggest challenge. In the end I decided to go and back to a fan art piece on one of my shows that I like to watch called Lucifer.

So, ultimately I ended up utilizing grids for the original piece as it was something I was taught in design and a number of art classes to utilize. I used copic markers which ended up drying out and the background was more splachy. I ended up taking Tom Ellis's drawn picture into photoshop and made it like what I drew but refined it quite a bit. I followed through by making layers and getting the illustration to look like the original.
In short it wasn't the bow and arrow worked on in the video, but I found myself somewhat not as moved to do that one and wanting to go back to something I did a month ago.