Very unique, but I'm not entirely sure about it. I can barely make out any of the other characters (not entirely sure if that's what you're going for), but not being able to tell all of Kairi's head...I'm not sure that was the best thing to do...sorry that this cnc is lousy, but I'm just not sure what to say about it. Maybe if you add a little bit more color to it than it being just blue.
the only thing i wanted in the banner is sora but i couldn't find a render of just him and i worked like 2 hours on this as i told you above i didn't want Kiari in the banner
First of all, tone up the contrast, it´s a midtone >/. Secondly, clean up the messy parts the cover up Sora and kills any change of flow and depth. Also, add more depth xD. Text is alright. And I know you want it to match the forum, but it´s too monotone in colors =/.