A suggestion...
Instead of having that odd instrument come in at around :37 (didnt know if it was piano or strings or something else) you could put in some sort of bassline. I say this because the piano work is very good and the background noise is entrancing, but this song seems to be lacking in bass elements and replacing that instrument with some sort of bass would make the sound of the song more complete and help the other instruments sound more flushed out. I don't know much about your kind of music (ambient/classical/misc) but it's just a suggestion. Anyways, 4/5 8/10