you've overused the style. The ligthing is pretty awful in my opinion, i know you probably don't want them to be, but the renders in all 3 of them don't suit the flow of the signature. The background is awful as well.
No text is making them look kind of boring.
I like the style if you work on it more, and don't overuse it.
He Who Dares Wins And i'll die to win, cause i'm born to lose Fucking Civilian