The creature at the top of the image is an example of what one invents when one asks oneself questions like: What if Ghidorah had been a giant insect instead of a dragon? (The answer to: What if Godzilla were a giant clam instead of a dinosaur? hasn’t made it to paper yet.)
The guy with the painful condition on the bottom of the image is from Slime God Summer – another story that’s never gotten farther than the sketching stage.