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.
1st. If I'd taken it then it would have been by mistake, but that said it has "something" going for it, but they eyes/lighting is too stark/contrasty/wrong
2nd. Would be great if you could see a tad more face
3rd. Head needs to be a little more to the right and not cropped