listening right now... right away I'm being picky about the main bd and snare :-P but I guess they do work with the synth parts.... one thing is that the song evolves too slowly and doesn't go very far... through 3:30 ypu intoruced only the synth parts one by one that are the same... I recommend fiddling with filters gradually through the song... it adds a lot of variety even tho the melody stays....
The song's got a pretty nice atmosphere. With a little bit off work it could become a LOT better.