Wow! These are great!

Very good, K.O. Light That's a very well done assignment. If I have to nitpick i would say that maybe you could use the direction of the fibers as cross contours to show a little more volume. But the way you draw is working well enough. The second part shows a lot of consistency in your process. I see you constructing your figures with the bucket and the bones underneath. When you take the time to do this kind of work it will show in the future as your anatomy becomes more and more solid. A tip on the second part of the assignment: the ones that you did just in line are successful because it makes sense to define every muscle with line. As you're moving towards more painterly figures you're adding 2 degrees of difficulty (value and edge). So you need to think more about designing your value arrangement and your edges. In both of those I missed a sense of more unified value structure and the edges are too hard (specially the second, which makes the figure looks tense). So whenever you're observing the anatomy, try thinking which muscles are tense and which ones are relaxing. Pay attention to the several degrees of softness an edge can have. And remember the hierarchy of forms when you're shading. Primary forms first then secondary, tertiary... In this case The primary form is the cylinder of the torso, then you have the the secondary forms of the muscles and finally you'll have striations. So arrange your values accordingly. Best regards and keep drawing