Nice Job!
First off, the main synth is AWESOME!! It really adds something to the song! Is it a preset??
Now, the bass. Its very strong, which is a good thing and it blends well. I love how it morphs from one not to another! That is a nice effect.
The drums... They were good, you did some nice drum work there! Its nothing epic, but its nice! :)
The background instruments... You need more. There seemed to only be one background which was a reverb of the melody. I would go for strings and chords, because they sound really nice when done right.
I really love the transitions. They are really the best part of the piece. They are loud and planned, so they sound good rather than crass. It really makes you jump out of your seat!
Overall, great song, keep up the hard work!!