Great stuff, i see what you mean by ambitious!
I think your art is amazing, your direction is amazing, even the story boards were put together well for this short. The music set the tone well and it felt like reading a comic. No dialogue or story was needed for this short, the art moved the story forward that well.
My only one criticism is that i think your writing/story idea doesn't do your art justice. I say this in the sense that i feel like every other manga i watch has this scene. It's to the point i feel like the mold needs to be broken by great artists like yourself.
having said that i think your project twill be amazing even if it only is half as good as the story boarding.
Great Job!!