DnD OneShot / Pre-Campaign Work

Currently hosting a DnD one-shot to introduce my players to the world I'm building for a long-term campaign. It's a trial run to see if I like the setting or want to change it. The campaign itself is serious but this one-shot may be goofier than the campaign I ran in high school where the big bad was the Kool-Aid man. 

My players are Grung (the frog people) and they're apart of Grung Force, a pest control company. They are clearing pests in a evil vampires cursed dungeon that's in his castle. Its so stupid. The first combat was with a cricket man named Jimminy Pick-It. They exploded a bunch of rats. Like pulverized. I also made the big bad for this campaign basically just Lestat...so there's that. 

Here's some visual work I made for the campaign. IMO it's my best work yet. 

What my players don't know is one of their allies is gonna brutally murder them next session.

I'm also testing out a mini-game in DnD inspired by Distractibles "Nah, I'd Win". I've revolutionarily called it "Nah, I'd Win".