The anatomy here is rather wonky. I looked at it and involuntarily said "huh?" out loud. I don't claim to be an anatomy expert, but I've been trying to improve my knowledge in this area lately, so I'm going to list what I see so far.
1. The (our) left hip is way to pointy, as well as coming down from a weird angle. It looks like it's attached to someone standing next to her.
2. The legs are a bit too far apart at the crotch, maybe half that width, or even make them just barely touching.
3. Her breasts may be a bit too high.
4. The lines coming out from the crotch (not sure what they're called) should probably be tilted down a bit and go a bit closer to the outer edge. Remember the female pelvis is low and wide.
5. Knees also look a bit low, though this would be better solved by lengthening the lower legs.
6. The feet are just wedges, check out the actualy structure of a foot and she'll look a lot more graceful.
7. She's got no ribcage, her chest should start widening a tad around where the elbows would be on arms at rest.
8. The legs are a tiny bit too thick for the rest of her, or maybe the rest of her is a bit too thin.
9. With her hand on her hip that way, her legs would naturally somewhat point in a similar direction as the hand on the hips, and the upper body would lean over the hand on the hip. She looks a bit stiff at the moment.
That's pretty much everything I noticed so far, I hope you can put it to some good use.