It looks a tad too symmetrical, and it doesn't really look finished. Looks just like C4D's on a bg. That being said, I like the outward flow and it has good depth.
Well using this tutorial, I have officially done it. Must be how well it was done. EVERYONE SAW WHAT I DID THARR.
add some stronger lighting, contrast and some extra effects or something like that because like maj said, it's kinda boring
nice sig, i would just lose the border, and maybe make some of the colors not so bright the text is so cool oh, and if i see one more anime sig............ ughhguhguhuhughughuggghhhhhhu