Prompt to start with:

<lora:Celine:0.85>, Celine Millstein, black hair, purple hair, streaked hair, ahoge, long hair, black cat ears, twintails, cat tail, dark skin, small breasts,

black dress, black nails, claws,

Negatives: (realistic, 3d:1.1)

Don't expect her feet to work, but you can try something like (((purple feet)))