I really love this image! It's got so much energy, and the shading really reinforces the underlying forms of the figure. The hands are definitely the weak point of this drawing, especially the one near the face, since it's close to the focal point.
Thank you so much for such analyzing! I'll have always a massive amount of room for improvement. :)
Great job on the overall pose and proportion! Put some specific practice into hands and feet, especially hands. :0)