Cute girl, nice lighting.
My one point for C&C is they keying...the choice of background vs clothing.
Here you have a dark dress against a bright background (so it's not keyed). The result is that the dress contrasts with the background a lot more than she does, and that draws the viewer's eye. If you are advertising the dress, that is the desired effect you would want. But if the girl is the subject, then you would want her to draw more attention than the dress....which can be accomplished by matching the clothing more closely to the background.