Wow, the atmosphere is spectacular! I like how the song sounds somewhat chaotic yet the melodies are easy to follow. The ending deviates from the rest of the song in a way, but it sounds smooth and conclusive.
The only thing I dislike is that I find the drums to be fairly weak. This piece has the potential to sound much more energetic and catchy. It's not that the drums are quiet, I think it's more that the layers of synths are about equal in volume.