This was ok. decent animation and voice work.
I love the Kingdom Hearts series, and hoped that this was gonna be great. It was good, but some thing to think about...
1. Drawing Consistancy: Some of the time, the drawings were great, and looked anime, other times, it look liked you could care less and the characters looked terrible to a fault. This says to me that there were times you were rushed or just wanted to knock the scene out. Please keep your drawing more thourough. If tere are times you don't feel like drawing/creating new scenes, then dont. Come back to it another time.
2. Voice work: While I think that the overall voice work was ok, your team needs to be a little more, into it, I suppose. I know that your friends are professional voice actors or anything, but when it seems like there is no feeling into the lines or it seems like a run on sentence(so much to learn/you understand nothing), it kinda kills it a bit.
Overall, I liked this, cause you tried and did well, but there is room for improvement. Best of luck to your next project!