Drawing every creature in the Monster Manual made me realize how many silly-looking and/or undifferentiated monsters there are. Sometimes the same basic monster concept seems to pop up all over the place. That’s fine for time-tested concepts like “badass skeleton man with glowing eyes” (flameskull, lich, deathpriest hierophant, skeleton, skull lord, wight) and “bondage chick with creepy eyes” (marilith, succubus, doppelganger, drow, eladrin, shadar kai, vampire), but who asked for all these
Bald guys with long tongues
I’ll give the yuan-ti a pass, because being bald and having a long tongue is what snakes do. The rest of you guys should be ashamed of yourselves. Abyssal ghoul! Put that back in your mouth this instant!
Guys who are helmets
There are some monsters, like the Death Knight, who are wearing helmets. These guys, though, all have heads that seem to be empty helmets. There might be some fire in there, but otherwise, that’s it.
guys who look like they’re wearing a stocking over part or all of their head
A monster with an alien, featureless face is pretty creepy. Get too many together, though, and it it just looks like they’re planning to rob a 7-11. This picture is like two faces spread over six guys.