Good stuff. =) (Could use work, though.)
Well, I'll just jump right into the review, ok? :)
The introduction started out sounding fairly simple, but as you introduced the second synth it got a little better, and it's sounding really good by the time you introduce the third, "da-da-da" synth. (Love that synth! =D) I'm really liking it right here, where it's the melody, though you could have used another harmony or two. It's feeling simple, and empty. If you're aiming for rave music, I'd suggest adding more harmonies - this has potential for sounding professional.
Another problem I have with this song is where you end with the thunder sound and go into a part where you have a pad playing by itself - it's bland, boring, etc. You shouldn't have it going for so long.
That's about all I have to suggest. If you fix that up, it'll be an awesome song, I'm sure. Hope I helped with this review. =D
Hey, if you have the spare time, why don't you check out my music? I appreciate reviews for either of my two most recent, though Dark Storms at Sea hasn't gotten a review in a while. :)