The only critique that i can make is that the composition of the girl is too centered, in my opinion if the back of the model was more to the left edge of the photograph so that the photograph appears more open to the viewer. Other than that the exposure is phenomenal and it was a great choice to have this picture in black and white. The models posture is interesting, relaxed, but very expressive all in the same as well as her facial expression holding the viewers attention. Great photograph! It looks very editorial and high-fashion. I Love it!
I disagree with ~xxsindosyxx assessment that "the composition of the girl is too centered." If you look closely at the photograph you will notice that the chair is not center, thus the girl is not center. Her bottom is slightly over the edge of the chair, her front foot is in 1/3 grid composition and the back foot is centered in the chair. I like the way the white sox add contrast to the shades of blacks to light grey. The pose is excellent, especially with her left hand hanging over her right shoulder; the position of her face facing the viewer adds mystery since its slight dark. I personally find this photograph erotic without being nude. Temptation is the feeling I get with her look.
A great mix of lust and mystery from the model. The rule of thirds is not absolute, but I think is satisfied anyway in this portrait. Eg. model's face in top RH third of composition and bum in bottom LH third. Two obvious focal points balancing the centred pose. In my humble opinion, It's a great piece.
I like it very much. I wonder if moving your light source a bit further away from her would create slightly more even light, reducing the bright spots on her knees, socks, and lower forearm. But I suppose some will think that adds to the shot.