Absolutely stunning. The model, naturally, is breathtaking; her eyes draw you into a hypnotic trance. More than her beauty, the technical merits are outstanding; the catchlights in the eyes are, really, what seals the deal on this image.
I like this one the best in the series. Less eye makeup, a wonderful sense of eye contact with the viewer, and her right hand touching her hair. I don't know if you've touched up her skin, but it also looks very smooth.