Second image 1st two drawings I did along with David's video. The rest are from imagination for the most part. Only looking at the 3d reference when I was in trouble. Quite tricky. I think I'm going to try this again drawing the humerus radius and ulna on their own. How those three interact with one another is where I struggled the most.

I did a study of hands and feet. I don't know if it's better to put shadows or not at this stage. I found it difficult to understand how the wrist moves as well as the twist of the ulna and radius. Can you tell me if it is OK?

Hi @David Colman, here's my second batch of chimpanzee skeletons. To encourage confidence and letting go I switched to ink (Pentel Fude Touch Sign Pen) Image 1 - Four drawings I did after having read your critique Image 2 & ➡️- Drawn after having watched this video Image 3 - A chimp climbing a tree Image 4 - A chimp teasing a friend by touching/pushing him and running away (I think I've seen chimps do this) In image 3 & 4, I tried drawing the skeleton from imagination. #3 was exciting to draw. I had a pose in mind, but didn't feel like I was in control after the first few lines, but I ran with it, remembering to be confident and trusting my instincts. And I'm happy with the result. After each drawing I checked with the 3D model to see where I was off (image 5). Questions: - Do you memorize proportions when you study an animal? Or do you just draw it over and over, tweaking your mental image of it, until it's in line with the real thing? - The 3D-model doesn't seem to have a talus bone in the foot. Is the talus a detail you would recommend ignoring? Thanks in advance :)

Added more straight edges but don't think I add enough plane changes.

I did a few hand and foot studies and some figure invention on the right side there! Should I do more skeletal studies of the hands and feet? Thanks again!

Here are my armstudies. I used a thin ballpointpen and a light grey marker to add a bit more volume. Any kind of feedback would be highly appreciated.

I used ballpoint pen for this assignment. I loosened up more for this assignment compared to the ape skeleton assignment, but looking at them I still need to loosen up more.

I guess there’s no assignment tab here but, as you mentioned that the arms are very important to learn in order to draw convincing apes; I’ll follow suit with some closer studies on the arms and hands. Something I noticed, I find it easy to loose the notion of those really long metacarpals when viewing them at an angle from above.