Very Nice. Very very nice.
The intro is extremely catchy.
Within the first like 15 seconds I was like, "Umm, 5."
It has a very minimalistic style to it, it almost reminds me a little of Deadmau5's older music before he got super popular.
Great work, I love minimalist music, the melodies and harmonies are wonderful.
Just some advice:
You're going to want some hard beats, and some deep bass in there when you finish the song. Some nice compressed kicks and snares maybe, and a smooth bass, so it doesn't take away from the tranquility of the song. The beats as they are aren't really impacting enough, and without any outstanding bass the hardcore trance fans are going to be whining like CRAZY.
I've Dj'd before, so if you plan on playing this in a club (which it is almost ready for, if you decide that you would like to follow what I've suggested) I think it will become a huge hit. Great job my friend, PLEASE finish this, I love it so far.
- Aaron.