Literally the only issue with this track is the compression and distortion as a result of said compression -- the volume leveling basically. Watching the spectrometer, there's a lot of red lining, which tells me either everything is just turned up way too loud to get a clean output. This takes away from the darkness and sonaural strengths of the instrumental and -- have you ever had a battery powered speaker start dying on you? This is the equivalent effect, except Reaper literally can't render the audio any louder than it is, so when it tries, it ends up distorting the shit out of it and losing its gravitas. Some people intentionally ramp up the output and compression to all or part of a song because they think it's hilarious making ears cry in more extreme examples. This I assume you really don't want, since without it, you've got some filet mignon on the plate.
TLDR: Watch your output levels. Your peaks should never consistently ride 0 dBFS. Otherwise what you hear on your rig and in the mixer might sound great, but what comes out is going to sound -- well, just worse than it would if you rendered everything at a more reasonable volume and then went and amplified it in Audacity (being sure not to allow clipping, or you'll have the same problem).
Around 2:47, your sync between recordings is a little off, just enough to jar me but not enough to draw my attention from the verse, which I will say is impeccably written and meaningful, as always. So no comment here other than a thumbs up.
On vocals, do have a look at noise cancellation like I mentioned. This will bring your vocals up a notch and help with mixing them properly. You could also do with some more clarity in the 12-18 khz range, and if you've been doing the sock on mic trick like I did for years, might swap to a sock stretched over a wire coat hanger. I mean, because hell, it works just as well as the 20 dollar clip ons if you have some clothespins.
Keep killing shit. Mad respect -- you've always got something interesting to bring to the table.