illustrious version :

weight between [0.6,1], best at 0.8

Basic prompt to give idea but these can be customized

prompt 1 : mob_psycho_funny_face, open mouth, exaggerated expression, impact lines, teeth, sweat, meme, parody, distorted purple background

prompt 2 : mob_psycho_funny_face, snot, exaggerated expression, impact lines, sweat, eyes vein lines, wide-eyed, looking at the viewer, parody, meme

prompt 3 : mob_psycho_funny_face, monochrome, greyscale, impact lines, meme, parody,

you can play and mixed all of these keywords : open mouth, exaggerated expression, impact lines, teeth, sweat, meme parody, snot, eyes vein lines, wide-eyed, distorted purple background, monochrome, greyscale, looking at the viewer, looking up

Pony version :

weight between [0.8,1.2], best at 1

I give some basic prompt to give idea but these can be customized

prompt 1 : mob_psycho_funny_face, open mouth, snot, exaggerated expression, impact lines, teeth, sweat, meme, parody, Distorted purple background

prompt 2 : mob_psycho_funny_face, snot, exaggerated expression, impact lines, sweat, eyes vein lines, wide-eyed, looking at the viewer, parody, meme

prompt 3 : mob_psycho_funny_face, monochrome, greyscale, impact lines, meme, parody,

you can play and mixed all of these keywords : open mouth, exaggerated expression, impact lines, teeth, sweat, meme parody, snot, eyes vein lines, wide-eyed, Distorted purple background, monochrome, greyscale, looking at the viewer, looking up