Was the shadow on the right side desired, or something that was left behind? I think that you could have done without it, as it does not contribute to the photo (its position with respect to the main instance is unclear).
unusual thought, to say the least, but think it was a good one, well thought out and executed ONLY thing that may have improved it IMO is the use of same color clothing for both "models", nicely done!!!
an approriate title for this picture. I like the effect. If the lighting was more cooperative and more dramatic, I think this shot would have been more powerful.