Very unusual and strangely interesting. Love the texture. I would prefer no dark shadow at top right - I think this would make the human silhouette stronger.
Very cool picture. Not sure I love it as a photograph as much as somekind of art. Very interesting image. I would've like to see the body take up a little more of the frame on this one.
Hm. I'm a bit undecided about your submission. I guess it meets the challenge on a thematic basis. Personally, I'm rarely a fan of "digital art" vs photography, although that has been known to happen on occasion. Overall, I don't think you've quite achieved that for me, but I'm not sure how to put it into words. I might come back if I think about it more...