very beautiful pose; I like the use of strong light and dark contrast; I think the image could be improved by adding a little more light to the figure to show more tonal range and detail in the torso and face
Interesting portrait - obviously the perspective is very intimate (this should probably be up for the intimate portrait project). Two things - 1. I'd like to see it a bit bigger (take advantage of the 800x800 size we can get up to) and 2. I think you should either blow out the top right corner white to match the top left, or put a frame around this so that it all stands off as a framed piece. That being said, good job to maintain some detail in spite of the backlighting, it's nice.