Nudeby
DrJOnesComment by beckettboots: Greetings from the Critique Club
Composition: Nice composition and posing of the model. I agree with the other comments that say that it should either be centered or slightly more off center to be completely pleasing. I'd also like to see the light picked up on the bicep of her left arm - I think that'd solve the problem with it getting lost in her chin. She'd probably have to cheat the arm out a little bit, which might change the way her breast sits.
Background: I like your choice of white to grey - how the divide is at her body. It helps the overall drama of the shot. I wouldn't mind something with a little more color in it - either starkly cool or exceptionally warm.
Camera Work: (Focus/DOF/Exposure) - the focus is soft and continuous and feels appropriate for the subject.
Post Processing: The color/saturation/contrast is perfect. The fleshtones are brought out well by the color temperature.
The Challenge: There's a bit too much flesh and detail I think for a silhouette, which may be why it didn't win outright (or maybe it was the subject matter).
My Opinion: A wonderfully posed and masterful shot. Personally, I found the pose a little bland and it feels more like a "study" or "sketch" than a finished work. Maybe a little more twist to her back to give the lines more interest. Your ability to shoot flesh and have it feel warm and soft is wonderful (obviously your model deserve some credit there).
Please let me know if these comments are helpful. If you have any other comments or questions please feel free to PM me.