Very Envy-ish! Good Job!
This is actually really good! Awesome buildups and a VERY epic climax! I think you did really good here, but some suggestions:
-Raise the volume of the kicks in the climax, they weren't loud enough. Maybe do some sidechaining on the overpowering instrument, I don't know. Just make 'teh kicks moar awsum'.
-The transition at 1:50 was all too sudden, random and just not very smooth. I think you could make that a little more sexy.
-Although you made very good use of different instruments, I think you used just a little too many. Usually we as reviewers complain for too little variation, this time I'm gonna complain for too much variation. The song didn't really sound as one whole.
-The climaxes could be longer. The buildups are really long, which is horrible to 'dance' on. The climaxes were actually very short compared to the buildups.
-There also were a lot of different buildups. Drum rolls, sirens, etc. They're very good for building up tension, but don't over-use them.
Overall, VERY good song, gratz. =] I'm gonna rate 9/10 for those little things I wrote, and 5/5! Download.