Well, the graphics are pretty good, but the animation itself is just okay. The whole feel of the movie is very "cutesy", but not something that I really got into. I was waiting for something to happen, maybe some sort of storyline to unfold, but the movie just stops at a random spot.
Now, a storyline itself really isn't that important, but I have no idea what was supposed to be happening in this movie. Why are they just falling through space, when just a few seconds ago they were walking on the ground? Which one's Bit and which one's Tiny? Or is this just a title that has no relevence to the movie whatsoever? But like I said, it's really not that important, but it does help keep the viewer interested.
Not bad, and I wish you luck on future animations.