I like the colors and how the hair melts with the background. The model is great and the lightning very smooth. In my opinion I don't like the culm in the front and that you cropped her hair on the top (IMHO I would crop it more or let the 'head in one piece'). In addition the posture of her hand (left from her sight) is very posed, so the full picture suffers a little bit of that. That is pity as the full composition is very good and balanced.
So, in my opinion, you should do the shoot again or try to rework it - the picture would be worth it .