Sounds lovely. Is the cello all BIAB? There are several ways of recording a cello to avoid boom, mushiness and wolftones along with the necessary playing techniques to avoid those issues. If they are all RealTracks, & I haven't heard RT cello before now son can't comment on thoose issues within it, then it's too late. Audacity is OK but you'll find better options for working with cello in Reaper.
nevertheless - lovely track - possibly a little over polished but that's fine too.


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