some thoughtful writing here, Cometear. Good job.. There are a few places id mention- in bar 19, where the sextuplets align with the 16ths - you have the intervals a 7th (flatted, though, in the bassoon - is immediately made natural- B), a 6th, a 5th, and a 2nd.. I like the idea of the acceleration of rhythm which nicely sets up a dramatic - and last climbing figure.. but it seems a little awkward harmonically.. Also, in m 22 in the first beat you have parallel 5ths lead to an octave, and some other spots in that measure that are harmonically sketchy - which can work sometimes, but here you are setting up the last few chords/cadence, and the 4ths and 2nds, 9ths, etc. weaken the cadence in my opinion..Having said that, i think you have understood much about how to balance 2 voices.Good work!