That is very nice. My comment is that I think the style is insufficiently defined. It could be read as a Helmut Newton-style image, with a narrative - why this woman is naked and upside down on a couch - but in that case the narrative is not clear enough because the only clue is the closed door behind her. If there is not meant to be a narrative, and this is purely an Edward Weston-style study in form, then I think the door should not be in the picture at all.
Les, thank you for the comment, this is definitively about the light and shadows in her body, interestingly she did comment about the door in the background
If there was no door, then perhaps a black background would be the best choice, we could have moved to a dark background, and I would have to use artificial light instead of the window
Edit: I did some quick edits the gray background with the wall texture looks better than a black background