You needed a little more light on this shot (IMO). More light would have reduced the grain and produced a more silky texture to the skin. Just my view. :-)
Nice shadows, the grain in the picture is OK bit I don't like the gray haze at the left. The picture is also very soft, maybe a bit too much in combination with the grain. The overall compostion is nice.
A bit too grainy for my taste; distracts from the smooth lines of the body. And the black background does not appear to be completely black has me wondering if there is a reflection of the body in the upper left area.