Great effect, but nothing to do with grace. Also, I think you should try this with different framings, orientations, backgrounds, etc. as this photo doesnt really 'do it' for me.
Hmmm, I'm sure you'll probably get a few of these, but, I don't feel this image personifies grace. Of course you, as the photographer, probably think it does, and that's good enough for me...I'll vote with that in mind.
Technically, the exposure appears to be pretty darn close on most of the shot. Where the thumb and the web of the thumb overlap it's a bit overexposed. The composition is obviously fairly simple and straightforward, nothing too elaborate. Overall, it seems as if this was more of an experiment in strobe photography than in trying to compose a shot personifying grace.
An interesting effect. Color, lighting and negative space all affective. Technically I don't guess I have much to say about it except that this photo doesn't hold much interest. Despite the fact that it doesn't speak of "grace" to me, even if I saw this outside the realm of the challenge there isn't much here that excites me. Personal preference I suppose.
Very interesting shot. Was this done with multiple exposure or multiple flash, strobe effect? Almost makes me sick looking at it, feeling kind of dizzy. Anyway, good use of light and good composition.