Fantastic.
The overall presentation was wonderful- extremely dream like. I absolutely adore that music; it's so haunting yet beautiful. The actually animation was very nice as well, smooth, and nicely paced. The way the character walked through all those different worlds was cool looking, and gave the animation a sense of progress.
My complaints are the somewhat odd-looking closeups, and some of the effects. (Mainly when the little blue sparks were shooting out of his arms)
Fantastic job so far. A teeny bit of improvement on the faces, and you'll be all set!