Very good drawings. I think you have good proportions, a balanced use of straights and curves and some understanding of the 3d form. I think you should try to draw some skeletons from imagination from a different angle. And you could also try to draw skeletons in a few different poses from imagination. This is a great way to find out how good your understanding of the flow of the bones and their 3d volumes really is. Hope this is helpful.

Looking at your drawings again, i really like how volumetric many of your video-drawings are, that is something, that i try to improve in my own videodrawings right now. I think it might be a good next step to give more consideration to the actual bones and muscles, like shoulder muscles instead of just a ball, biceps and triceps instead of a a tube. But as i said i think your studies are great as they are, it would just be a way to practice anatomy while studying poses.

Good drawings! I think your proportions are quite good, and i like that you tried some poses. You should definitly continue doing these. I think it would really benefit you to focus on the threedimensional volumes. Try to come up with some simplified forms for the ribcage and other bones. You need to be able to draw these volumes from imagination/memory in different angles. When you draw your videofootage/life-drawings you should start to become aware of these volumes (with the ribcage probalbly beeing the first one.)

Great poses, they are very entertaining! Anatomicaly the only thing i can think of would be to maybe add the shoulderblade if you want to go a bit more realistic. Otherwise i think the thing you could try to challenge yourself would be to try some more difficult cameraangles.

These are very beautiful. And good job with showing the volumes. I think you should do some from memory/imagination in some poses to find out how much you remember and can access easily.

I really like these studys and i would like to see more. I think you did a very good job with finding the positions and shapes of the muscles. And i think your poses are great, i especially enjoy the the one walking toward us. I feel the thing that would help you in your next studies would be to "feel" the actions and movements of the muscles. Like how the chest and deltoid would be under tension or stretched out when the arm is lifted. How the triceps would be stretched and the biceps thightend when the arm forearm is lifted. And the other way around when the arm is just hanging. Hope that it helps.