The detail in this sig is really nice, the text is brilliant. I like the first one just due to there being more contrast. Since the lighting seems to be comming more from the top left of his head i would burn the right side of his face more, just to add more realism to the signature. I Don't really have any complaints with this signature, would be nice if the neck and the shoulders of the render were more visible. But meh good job. Really nice blending, flow and perspective. Although i do believe, slightly blurring the background out a bit more would greatly add to the depth.
I like it, great job.
He Who Dares Wins And i'll die to win, cause i'm born to lose Fucking Civilian