Sounds great
I wanna play it

You should be okay.
True, your flutes have a hard part, but it's alright.
You need strong trumpets, though.

Personally
I can play better
when I'm more motivated by the piece.
For instance...
http://www.youtube.com/watch?v=ttQjm-8OITE
How, my friend, is that not motivating.
That speed.
I did great, because it's so motivating :3