Umm...
Needs to build up quicker in the intro and needs a lot more texture throughout. Maybe keep the drum beat or at least the bass drum in continuously and add in a bassline just to give it a bit of weight and depth. Check out my latest song Rejected Ambience, it has a nice heavy bass almost completely throughout although don't listen to the drum beat if you're looking more towards trance songs.
Good effort though! *gives hi-five*