So,

The Daft Punk synth at 1:00 is niiiiice.. I just hope it's not a sample. >_>
Mastering could really use some work, there's a lot of extra frequencies that don't need to be there. Try compressing your choir and not cutting out so much of the mids.

Besides all that, this is pretty damn original. 2:05ish, you got some harmonic problems. Also, at 0:50, the super reverb on your violins is messing with everything else. Lower the attack and cut some reverb during that section, i say. :p

Weird transistion at 2:55. The mix volume of violins and the harpsichord synth is kinda off, too.

Cool overall though.

Nice

i would humanize the piano more, but it's still good.
Change the velocities of the notes more too, the arpeggios are all at the same high velocity (or low, they are still all the same).
The drum break enters and leaves too quickly.. that is personal preference, I suppose, but yeah. FX at 3:00 is kinda awkward and maybe unnecessary, the song flows just fine without it. :D

Great!

I haven't found any decent hardstyle on NG till just now. Hardstyle is actually my favorite genre of electronic music, and this is just amazing. Do you make your own kicks and leads, if you do.. bravo! This is just amazing. :D

Great screeches too btw, to make them even more prominent, perhaps you could make a second one, but put it an octave with more LFO changes? Just an idea. I love the sliding saw lead too, btw.

Overall, one of the best pieces I've heard on Newgrounds.