I'm really not sure where to go on this one.
The style is, of course, ProsciuttoMan, and it has a lot of that rather staggered / basic loop stuff going on with various things ranging from lipflap to violence. I think you sincerely need to get a better microphone because the quality of Gunman is drastically worse than every other voice in this production. You can make the argument that it's intentional, but everyone else sounds much more consistent, making Gunman uniquely echoey.
Of course, Crimer in particular being the character I myself voice, I found that his looping mouth frames really do not fit the Ben Shapiro style direction I was given for the line delivery. You needed to have start/stop on mouth assets, because otherwise it comes off as painfully lazy. This takes a lot of time, I had to do it for Ben Shapiroth. But it is worth it for a better product.
I think the thing that really made me laugh most was the second time Bullet Girl made a joke and Gunman lost his mind. The pushing for laughter part landed best there.
Overall, I think this fits into a mid-2000s animation culture more than 2022. There are too many shortcuts taken where there could be more polish. It feels like a half-step from an animatic/comic book to an actual cartoon.
The art pieces throughout were really nice and those bump up the score. The music choices were also a nice throwback to how things used to be.
Keep working on your timing and don't take shortcuts. Your style definitely doesn't feel like it's the best fit for longform material that's dialogue heavy. Refer to Peter the Ant or Goobee's Lament for more on what I mean, where these were very well communicated visually. The use of VO can be a double edged sword sometimes, and I think having clean audio almost brings the charm down.
Keep at it!