Two images that I liked are the low angle looking up at the the horn players. And the one of the back of the girls head.
I think you are just working with difficult material. The reason I clicked on this thread was because I was wondering how someone got interesting shots of that.
The others there was just a lot going on that I didn't understand.
Some things that may be fun to try- add a little more motion blur so I can see what they are doing
-depth of field, the audience or matching uniforms distracts my eyes
-higher angle for an overall view.
I don't know what I would do though. Ha you did great.
Thanks. Being a total rank amateur, I was a little nervous about trying to get too creative and screwing up all my pictures. Hard to tell what you have on a 3" screen. All the band parents and kids are friends on Facebook, and we all love to see our angels performing. So, usually a half dozen videos and countless cell phone pics from the stands, was much different being right down on the field. Motion blur looks like an effect I need to practice. The first photo from lion rock
looks great using the effect, conveys action!