Im not a fan of this one, sorry. The render seems so be quite low quality? and im not too keen on those types of fractals, try using the smudge tool to create a background instead
i see u have tried to blend the sig in a bit, dont get into making backgrounds out of C4Ds it shows lazyness and looks too boring.
the render is badly placed and should be moved up.
the text is a bit better than normal but takes to much of the sig up.