Decent submission, but seemed a little tame.
This submission of yours was alright, but from my perspective, I saw a few things I'd like to point out:
1) It seemed hollow, almost to a point of minimalistic at quite a few points throughout it. I know songs often start this way and build, but I really didn't get the feeling that it was building up much, even when the other instruments came in.
2) Too repetitious. The first portion could've been shortened in half and still had as good an effect at adding elements as you'd planned.
3) When you did do the one part in the middle (2:23 - 2:38), it ended in a note echo that clashed horribly with the section you continued afterwards.
Again, it was a decent song, laid back and quiet, but I personally felt you could've done more with it.