Great job.
This was awesome all around. I really can't see anywhere to critique at all. I can't even notice that the quality was cut down at all so you could fit the file. I can't imagine how great the quality would have been if you didn't have to cut down at all.
You had a great build up all the way to the voices. Such a great build up that I got caught up into the music so much that the voices completely caught me off guard. That was just about perfect timing.
An overall great song. Good job.