Excellent work. :D
I honestly love the way the piece sings and builds... the dynamic motion is in great motion constantly, that's excellent. I would give you some constructive criticism, but I am not in a good mindset for offering it... instead I will just say that I like it a lot, although some of the instruments could have been balanced a bit better and perhaps a tiny bit more reverb and spreading used at certain points.
Brokendeck was talking a lot about he wants to see pieces with melodies, and yours has a clear one... also lots of dynamic mood changes.
3:30 is epic... love that swing of mood. Masterfully written there onto the end... the rapid arpeggios in the 4:00 area sound great and are something I have honestly never thought of using like that; it provides great action.
The harp around 4:50 is beautiful... that buildup is perfectly executed... the ending doesn't have much of a cadence though, but it sounds great anyway... consider a harp arpeggio of the chord, slowly going up from the lower end of the instrument up to the top over the course of the final note... it offers some more character to an otherwise plain ending.
Great piece... definitely top 8 material. :)
-Samulis