Our favorite spooky imp of a super-AI, Yay.
Recommended tags: "AI, very pale grey skin, red eyes, slit pupils, short hair, androgynous." This model is trained on both their "black hair" and their "white hair" forms. As well as their multiple hairstyles. If you're trying to do a scene with their mutiple bodies, try adding the "mutiple bodies" tag for a little uniformity.
Generators don't like to play nice with the uniquie take on their eyes. You can try an outside LoRA to help with that, but I've also found using inpainting and lowering the denoising scale also produces good results, though it may take a few attempts to get it right.