Thanks a lot for the comments, guys! This is my second attempt at an energetic brass-powered piece like this and I think I'll keep writing things with similar instrumentation.
Tom, I'll keep your comments in mind for a future mix of this track. Humurously enough, the 4/4 at the end of the piece made me only think "Japanese Anime" theme song sound, and I felt that super-high trumpet made it work, but at the same time I arranged this in only about 2 hours so i didn't work everything out as perfectly as I could have/would have!
SongCraft, you're definitely right. I originally intended to write in a string section but I had trouble figuring out how to fit it in well. I'll have to be more aware of my arrangement choices as I go forward.
Starise, thanks for the comments here and there! All of this is actually like-recorded brass, albeit treated a bit to sound as good as a 2-hr mix will let it sound.
Thanks a lot for listening, guys! More soon :)