"Damn! Dammit! Dammit! I've been humiliated! HUMILIATED! Me, Envy, jealous of you? A human?!"
Another Envy? Yes...but this time in his true (and cutest) form.
It seems it's a bit hit or miss if he gets generated correctly. Might try another training at a later point.
Illustrious Version:
Tried several checkpoints and somehow all love to give him a jaw. Using jaw and tongue as negative prompts can bring him closer to what he is supposed to look like.
It's also hit and miss if he gets the correct amount of arms and legs but it seems using four arms and four legs as positiv prompts pushes the correct amount more than without it.