to keep close to her old design try any of these - or put in Neg to reduce chance - SFW/NSFW
may need to add 3d, or realistic, in neg for certain 2d/anime styles due to having more 3d image training - or lower weight for less influence -
android or puppet based prompts/styles may enhance appearance while others may make more human has limited training
Ponyxl - TW is bmberxl,
face/body
sbmber, red eyes, black sclera, - black hair, grey skin,
double bun, or twin tails, or hair bun, short hair, - hair results may vary
android, doll joints, or robot joints, - may enhance appearance
may have facial mark, or cracked skin, black sclera, present
Outfit
navel, cleavage, corset, - etc - or any jester like attire
attire is attached to body so altering attire results will vary