to keep close to her old design try any of these - or put in Neg to reduce chance
may need to add 3d, or realistic, in neg for 2d/anime - suggest weight between - 0.8 - 0.6 - NSFW/SFW - due to being short - be wary of NSFW showcases with default size
PonyXL - TW is Nimonaxl, - v6 may be more accurate
For appearance
Nimona, short red hair, sidelocks, black eyes, or brown eyes,
has sharp teeth - can also add long hair, - freckles,
could add wings, or demon tail,
has little training of her animal/furry forms - lore wise they are pink skin, of some sort
for attire
ear piercing, dress, or red tunic, arm bandages, or fingerless gloves, brown footwear,
pants, in NEG in some cases or miniskirt
shoulder armor, or armor, may add more than needed