Very interesting photo! I especially like the contrast between the blue eyes and everything else. The mask is interesting, and the fingers provide expression that the hidden face cannot otherwise shot.
I wish the right side of her body (especially her eye!) was brighter though. The darkness there kind of detracts for me.
Just put your hand up to the screen and take turns covering up half of the picture. It becomes incredibly obvious how much better the left side is. It is to the point that I would almost suggest cropping the image at the midline of her face (though I suppose that would not be dpc friendly)
Beautifully executed. Nice sharp detail. Great use of lighting. Amongst best in challenge and imo will finish in the top 10 with a good chance of getting a ribbon. 9