I like the first two tracks. You theme sounds a little bit stravinskian in some ways, which I absolutely love.

Very pretty and well composed, it would be exquisite if used in an animated movie, too.

With my OST I had to take a different approach by composing that sort of mini piano concerto thingy in a single continuous track for an imaginary prologue cutscene, because I didn’t have much free time to figure out out a whole mini-soundtrack for different stages, alas. :(