not too sure on 1, its kinda crazy, if thats what you were going for then nice one.
2 is the best of the bunch for me, although i'd like to see it slightly less processed, but i guess thats a personal thing.
3 is nice, great lighting, but the fingers look really strange, and that distracts me a bit. Worth redoing if u can, without the hand, or try and make the hand look more handlike.