I think the face, eyes, hair interesting. The lighting and expression is spot on. Personally I prefer it cropped to just above the btb zip, and to the right of the collar, i.e. face and shoulders only, then I think it is stunning. The elbow sticking out, hands do nothing for the photo, as I see it. Plus, cropping puts the eyes in a more central position. But then, what I have suggested is no use if it was meant to be for a jeans ad.