the shadows look good on the wall, but next time, i think the model's legs should either be in so that they're not visible, or farther out, so that they're more apparent. it seems like when they're where they are now, they take away from the model's nice, curving figure.
IMO, you've created a strong mood here with an original pose and dramatic lighting. Also, I like that your model, although attractive, is far from perfect... and far from perfectly styled. So there's an unusual contrast between the studio quality setup and the informality of the model. A good job all the way around.