I'm really loving the sense of movement throughout the entire picture, but specifically in her body. The shading is awesome; I like the whole fire/ energy theme you have going on. Anatomy-wise I only have a couple complaints: her left foot seems a bit big and her right hand is a bit less realistic than her left. It kind of looks like the fingers on her right hand are made of noodles.
Overall, though, I really like this piece. The composition and color choice are great, and, apart from the things I pointed out about the anatomy, the figure is really well made.