Windrose

It isn't really my style, but that's beside the point. I believe you did a freaking fantastic work with the posture. Bodies and their positions are one of the hardest things to convey, especially in a dynamic way.

The coloring is well done, except for the shadows in the legs, but I think it's just me on that one. For some reason I feel like the light would cast the shadows in a different position, more to the right.

All in all, these are but little things when looking at the big picture, quite literally. I believe a successful drawing is one that manages to convey something in a proper way, and as I stated before, you manage that with your excellent eye for dynamic looking postures.