The top sig has a cool render, but over smudged at the edges, good colours and lighting. id give it a 6-10 it would have been more but that border just kills the sig imo.
The bottom one isnt a sig, just a representation of rape.
really love the thing with mc´s helmet but eh the right side of the signature doesnt seems ok , will remove some parts of the C4D .. anyone nice tag and the text is nice 8/10