Very nice piece of work! I wouldn't be able to make such a thing even if I spend years on photoshop. I say V1 comes out the best.
He followed a tut, you can find it in the marketplace. ;p Nice work, except for the text, the text isnt good at all, try working on that, everything else came out fine.
Yah I like the execution of the sig, but there is one thing lacking, the text. Try fixing it and it will looks 10x better. =)