The tag's name is power of flow. Erm.. I really like it. I might make a tut if anyone wants it. CnC With feet blended - With the green off.
Blend in the guys feet a little bit to make him seem more of a part of the signature. Try erasing them with a low opacity soft brush.
Has very good flow, but go over everything but the render and make a colour balance and make it green and change the settings so it matches the flamy green thing there. Try that and post it back, and it looks like a sig for a tutorial, go for it .
That's a pretty cool sig. But I don't see any difference between those three sigs except the shoe? Meh, nice sig.