At first I hated the left one, but the more I look at it the more I really love the negative space that is between the legs. Also the angle/perspective on the left foot, along with the body weight works. One on the right is my favorite 5 min. Weight of the body works well against the right leg. I think I may have exaggerated her left leg a bit too much in its point. I love how her stomach and torso curves up.
Originally I was kind of blase about this perspective but doing just her back proved to be a lot harder because you really have to concentrate on all the sub shapes of her hips, shoulder blades, and waist and not just the overall torso. Also I was cursed once again with the Strange Perspective Foot. Her leg was crossed and shoved downward with her foot hanging out of the side of her body. She was also leaning slightly forward on one of her knees.