Love pictures of dancers. They are so physical in their grace and beauty. Must admit I had to look at this one for a while to figure out her position. Fascinating use of foreshortening, though I makes my head spin a bit.
(Oh, and I LIKE the angle of her head. Can't exactly explain why, but it just seems to go with the rest of the pose...)
I like how you used the negative space in this photo. Her eyes are amazing. And the placement of her hands is perfect on her Pointe Shoes. However, for me I would have just keep her head upright. But a great photo.