I loved it. Heartfelt, meaningful, and expressive. My only gripes would by that some of the 3D art, particularly the ships, stood as stylistically different from the rest of the imagery and slightly took me out of the film just a tad.
That’s my only gripe though. The setup and payoff are excellently handled. And the animation itself is excellent, particularly through your 3D/2D blend. Hats off to you!