I made a sig.

Yes I did! I wanted something not to do with Kairi, or DBZ....

How does it look? Should I use it?

It's nice, the blue is very bold, maybe a little too bold. I like the idea of Chrono in there, however his colours are just way too pronounced, somehow he doesn't fit. I mean check that dude's scarf, he's so camp

what colors should I use then?

I think red to go with his hair, so a deep orange maybe. If you blended him in or added a colour overlay it'd look sweet.

I tried red, this looks better.

You're right, that does look better, nice job. Big improvement, I like it