Very good. The lineart is extreamly clean, you've got a good pallate here and seem to have gotten the style right (i've never played KH: Chain of memories, but this fits the first KH style)

Your composision could use a little work. It's very busy with all those little tendrils going everywhere. The red ones go forward, the black ones go back, and there's no sense of movement, just a lot of confusing...stuff. It'd be better to have them all going in the same direction. Composision is a hard study, but it's nessessary.

Your hands look a little too rubbery. I think it's one part arrangement, one part anatomy, so you might want to do a few hand studies. Good drawing is like body-building: If you develop an imbalance, you gotta do specific sets to fix it.

And finish the things on the bottom. It's a personal pet peeve of mine, but stray lines that don't go anywhere are not cool. They make it look like you didn't care about the drawing. As you clearly did (and did a damn fine job) that's not a good impression you want to leave with the viewer.

Good work, and I look forward to seeing more.