Usage and notes:
Dante prompt: DMCDante, 1boy, white hair, blue eyes
Lady prompt: DMCLady, black hair, heterochromia, 1girl
You can prompt for both characters at the same time, but there's a big chance the AI will mix up the hair or clothing, so it will take multiple attempts to get the AI to cooperate.
The model is trained on widescreen images. I'm not sure how well it functions for tall aspect ratios.
For full prompt examples, look at metadata for the image uploads.