to keep close to her old design try any of these - or put in Neg to reduce chance
may need to add 2d, or anime, in neg for certain 3d, or realistic,styles due to having more 2d image training or 3D, in NEG to enhance
works better with 2d/anime styles but may get flagged more often if planning NSFW showcase
V3 - attire formation is better but may have other issues - was trained without hat - so removal/alteration of attire should be easier
For appearance
Fuka, brown hair,twintails, - brown eyes,
for attire
blue headwear, or blue hat, open jacket, yellow front-tie top, or tie, blue thighhighs, school uniform,
suggest - yellow hat, and x on chest, in NEG