Okay, the extent of my photographing the human form is limited to family portraits for friends & relatives; however, I've seen my fair share of on-line content, and I do have a few comments. First off, I have a little problem about the whole shadow thing. If it's not dark enough, it just seems to gather in the minor imperfections or natural folds of the skin. The model is clearly beautiful, and I would never fault her features, but it didn't seem like it was dark enough to have the effect that it seemed you wanted. My only critique of the model is that she looked bored. Other than that, I think that the intention was good and you're on the right track.
Just my opinion.