That's Great!
I liked the dark feeling, and that his face is happy while the sound and theme is sad. Maybe you could fill the boy with white colour, just a thought, that'd be something i would do. I don't quite like the fact that he is transparent. And I laughed at the dog biscuits part. You british voice fits the movie great, maybe you should get a better microphone, though. Anyway, 5/5 and favorite!