Alright, overall I liked it alot. But I have some criticizms.
--I absolutely love the beginning
--The horns aren't the greatest
--Piano is great around 2:00
--make that 2:35
--Strings are great overall
--Still horns x.x
--percussion sounds great
--4:10 horns a bit sloppy
--love the harp at 5:10, flute at 5:15
Overall, the pads weren't all that real sounding (especially the brass), though the strings were quite fine. For strings and percussion, I have no complaints. Brass definately needed some work. Theoretically, in strict terms of the arrangement and not the sound, it couldn't get better. Serious hats off to you. Find some better horn (trumpet, bone, french horns, low brass etc) samples, or even better, get a live band to perform it. See if your local high school band is good enough. Other than that, great job =D