Cool thing Will,
You've a LOT going on in the bottom end so need to EQ carve some space for each low end part &/OR do some High Pass filtering.
the kick drum and bass are overlapping so need work.
The cymbals are prominent and need some EQ to reduce them.
Finally the toms seem unnaturally forward in the quieter sections.
The drums will be quite hard to manage as they're just a stereo file BUT it can be done.
First step - to manage those frequncies would be to switch to mono for monitoring - that'll give you a clearer picture of stomping and the need for EQ.
When the orchestra comes in it's an entirely other bag as it's very busy with added low end.
I think the mids need some mud reduction in the full sections but the top end seems cool.
DEFINITELY do your EQing in mono before switching back to check in they stereo panned version.

Cheers
rayc
"What's so funny about peace, love & understanding?" - N.Lowe