Wow, I don't really know what to say. You did an excellent job on this. I can't really come up with any faults. The melody work is pretty darn good, the overall progression keeps the song interesting, and that ominous bass is so interesting! (It never really comes into focus, it's kinda lurking behind the rest of the track. What exactly is it?)

The very first intro melody is my least favourite, something about it seems a little off, but the rest of the track completely overshadows that minor flaw. (I especially like the first lead square melody around 0:40)
Those panned chip things around 1:20 are also pretty cool. I like whatever sort of rhythm they have going there. Also, just following that section, I really like your use of the glissando slide/roll things things.

Overall, I'm quite impressed. Very well done.