Andreas,from a personal viewpoint only, i think both elbows should have been in the pic, as it looks slightly odd. The previous comment of chopping some off the bottom of the pic I would agree with as the little bit of the blue jeans attracts the eye. This detracts then from the models facial expression which is great.
Andreas, as great as it is for the expression your model shown here, the beauty of her face and the pose I would shave 10% of the bottom to balance and strengthen the image. It's nothing else than my suggestion only. Cheers, NJ