Interesting concept...
... coupled with a nearly perfect execution.
For just about everything it gets 5/5.
Now about that ‘near’: there were moments when the background music was not entirely synchronized with the rest of the movie, especially the end of the sky battle – it faded out too quickly. Also reading the subtitles proved to be rather tedious. They were both small and faint (white on a partially white background).
Even with those two minor flaws the movie was very enjoyable.
Good work.