OMG! I love this. Like, a lot. At first, I actually thought it was real Kingdom Hearts art (like something Nomura would do) but then I looked a little closer. This soooooo reflects the whole 'feeling' of the game. *instafave* Thanks so much for posting this!
It's so simple, but the way they look at each other has a feel to it that is hard to describe. Grasping emotion in a work of art is what artists strive to do in any piece of work. You grasped their emotions for one another to the point that, if I didn't know any better, I would suspect the game designers made this themselves. Very nice work.