It's an ok sig, but i can't really take it seriously ATM because i keep thinking of Chrono's.
Now that i've actually taken a good look at the sig WITHOUT comparing it in my mind to Chrono's sig, I think it's One of your best..
I do however spot one tiny little thing that throws off the overall feel of your sig:
The Background behind his head.
It's too pale to be in the Epicenter of all the light that's coming out from behind the render, although i think that if it had been the same kind of vivid light, the guy's head would be rather hard to see..
I'd say adding a little more saturation and changing the blue to a few shades lighter would make the sig Much better, although, as of right now, i believed that it is your best sig yet.