I haven't listened to it really, but your score is a complete disaster... Add some space between the staves for Pete's sake. The scoring seems a little unorthodox too. I know there isn't really one standard for marching band, but most shows I've seen have one baritone part with only brief divisi sections. The divisi parts in the woodwinds that you have a lot probably wouldn't work to well either, especially with a smaller band. Your battery parts look extremely boring and wouldn't showcase the drummer's skills at all (something marching drummers like to do
). Overall this could use a lot of work. Keep it up though.
I much prefer original marching shows than ones ripped/arranged from pop, film, or symphonic music.