This song is well mixed, and the synths sound just heavenly going with the rest of the song. I'm really enjoying what I hear so far.
However, this sounds more like an introductory buildup to something far longer. Already when listening to this I could imagine a piece as long as, say, 7 minutes, chord variations, breakdowns, more building up, perhaps a counter-melody or two. You know, something that would keep listeners in the proverbial loop.
Please, if you can, build up on this song, and take into account the various things you can do with it -- I can already picture a final result in my head, perhaps you can surprise me.
Not bad, you could use more work on arrangements.