I think your work is really good, Joe! Especially the the anatomy deconstruction.
One thing that might help you: when you are doing 30sec and 1min gesture drawings, do not focus on drawing/copying the outlines of the pose, but try to „feel“ the pose and draw that then…. Probably not the best explanation, but maybe a quick look at Proko‘s figure drawing videos (I think its called How to draw gesture), might help you.
https://www.proko.com/course-lesson/how-to-draw-gesture/assignments
The difference between the two ways of drawing the gesture is, that with one you focus on copying outlines and with the other you focus on a very essential thing: the pose itself and what it tries to convey.
Also: do not get hung up on little details like the bump of a particular muscle thats sticking out, try to portray the figure using simple C-shaped, S-shaped and straight lines.
But the video will explain everything in more detail!
Good job, and keep it up!