Ok, so a little help...
First of all you seem like you half know what your doing but half don't. You've got that typical trance melody and synth which every trance fanatic loves to hear (over and over and over). But the main problem with this song so far is the fact that the bass is off key. It's playing an F i think which isn't in the same key as the melody. Also the intro doesn't seem to work very well with your song.
But some possitive points... you've made good use of the filter in your main synth. You've captured the trance rhythm. And believe it or not... with a little bit of work, this piece could be buzzing!
So keep composing man, and hope the review helped.