Recommended Strength 0.8 to 1.

Base Prompt:

TerminusEst, blue eyes, white hair, very long hair, hair between eyes, hair_ribbon, black_ribbon, petite,

Default Outfit:

SchoolOutfit, school_uniform, white_uniform, long_sleeves, juliet_sleeves, frills, pleated_skirt, neck_ribbon,

Result wise, I think it's very consistent, so I hope you'll like it.