Ok, here go my advice, try don't lose the Light, blend more your work and try some smudges, will help with this C4D's, the text color could be other, more dark will be perfect with the sign, the black background can be some other image, try to figure something with this, put a image from naruto and Displace it.
why i dont like the bg
Your background sucks balls. Put more effort into it.
Personally I think that those sigs with like a render and a few C4Ds and possibly a detailed BG are still bad. This one just looked like random placement of C4Ds and yea. Idk I just feel that C4Ds shouldnt be relied on
Advice, Blend more and add more to the background.