Battle Theme [Incomplete]

I've been trying to work this but I can't seem to figure out how to expand it. What do you guys think so far? 

Wow.

I would say keep the percussion and the staccato brass going while maybe add in some low strings that are sustained? 

I love what you have so far, feels like one of those fights where you finally get to do battle with your rival.

In my opinion, by keeping the percussion and brass hits going while adding something on top, will begin the slow climb to a build up...but that depends on where you want the track to go. 

Maybe switch up the percussion patterns a bit while adding in other percussion instruments?

Love it. I feel it needs to repeat the beginning theme again later but a bit more developed.

Wow. Thank you for all of your kind responses! I'm glad you liked it, I was actually ready to trash it!

I tried writing a bit more and added some percussive piano over the repeated last section but wasn't able to develop the theme any further. I'll attempt it again with all your suggestions. Thank you!