Sure has the makings of a trance tune
First thoughts: Very bassy. That could sound pretty good on any normal system or possibly headphones, but it was a bit much for how I had my speakers. The song really is just like the title, very spacey sounding - not a bad thing, I rather like the fact that it is a pretty wide mix. Stuff used doesn't sound pre-canned, like you attempted to at least customize the synths if not create presets yourself - good news :) I've heard so much of the prefab FL stuff everywhere else :P
Nitpicks: As noted before, the bass is pretty intense. The levels of everything else are just fine, just that bass... whew. The saw synth is pretty basic, sort of raw - it could probably do without the phaser and maybe use a chorus or flanger instead. The square pluck sound is decent. Whenever the bass is playing, it chokes off the rest of the mix quite a bit. Some of your low synths are eating each other with conflicting notes, I'd recommend keeping lower stuff together - since you can get creative with chords using mid and high synths instead. The song sort of drags on for a while, like some parts are a bit lengthy. That's trance for ya, though.
Overall, it does sound pretty good. Decent arrangement and there's enough variation to keep me in the song, but not by a very large margin. It's difficult to listen to the long version of a trance tune in my book, though. Most of them are designed to play for long stretches so they can be mixed with other tunes. No biggie.
I guess I get to be the lowest reviewer here so far, eh? I'm a harsh nitpicky critic; that is what makes people improve. Hopefully some of the nitpicks and tips I've offered will allow you to maximize your skill and improve :)