to keep close to her old design try any of these - or put in Neg ( when altering appearance/outfit)
may need to add 3d, or realistic, in neg for certain 2d/anime styles - lower weight for less 3d influence - 0.8 between 0.6
ponyXL version may need a XL VAE as a 1.5 VAE may cause issues - Images must be - at or past 1024x1024 or 832x1024 - Sampling steps past 30 - this can work with any model that is PonyXL or was merged/trained from it - realistic, or anime, in prompt may help - DOES NOT WORK WITH 1.5 checkpoints
face/body -1.5 or pxl
Viola or violaxl, blue eyes, short hair,two-tone hair, blonde hair, blue lipstick,eyeshadow,
suggest pink hair, in NEG
Outfit
leather jacket, white shirt, navel, jewelry,fingerless gloves,belt,choker, red plaid pants, or plaid pants,
pants, may spawn extra pockets, belt pouch, or turn blue, - NEG use can help
shirt design is RNG - in painting may help
weapon on back, or sword, is RNG