>>40951848it only needs one face setting because it only ever experiences one primary emotion.
like Alastor from Hazbin Hotel.
https://www.youtube.com/watch?v=tA10XayhSOMHappy, smug, threatening, excited, angry, puppydog eyes, suave, everything is the same big cheesy grin because that's mostly what he's feeling. If things go his way, wonderful. If they don't go his way, it's a novel surprising twist and potential source of new entertainment. And if he is displeased, well, he's eagerly anticipating the tortured screams they're going to be making in a few moments. No matter what happens, he's the one in power, and he's gonna have a good time.
I have a feeling Eternaus has that same big lovecraftian horror dick energy.