Alright, I'll start with the bad, because in all honesty it's really nothing; the crop seems a little to high to me, her knee shouldn't have been cut off. Again though, it's nothing, more or less personal taste. Otherwise this shot is perfect. Very effective lighting, your focus is right on, contrast is perfect and there's nothing taking my eyes away from the focal point; hers. I really like the pose you've chosen, it exhibits both class and lust which is really hard to pull off. I also like the plain expression on her face as it forces the viewer to look beyond, by that I mean it forces you to really look at the picture, not just her face (which is gorgeous).
This woman is just perfect. Nothing else. Sorry, but this time cannot think of the photographic or imaginary value, she catches all attention (and I guess then the image is great too). Perfect face, perfect body.