weight 0.7 is best.

I created this LoRA as requested.

Please read the description.

outfit1 (summer school uniform)
1girl, solo, brown hair, short hair, purple eyes, mole under eye, school uniform, white shirt, blue sailor collar, green neckerchief, short sleeves, blue skirt

outfit2 (winter school uniform) (Due to the lack of images in the dataset, different colored clothes appear occasionally.)
1girl, solo, brown hair, short hair, purple eyes, mole under eye, school uniform, white shirt, blue sailor collar, green neckerchief, short sleeves, blue skirt

outfit3 (band uniform)
1girl, solo, brown hair, short hair, purple eyes, mole under eye, hat, band uniform, sleeveless, white gloves, pleated skirt, knee boots

I uploaded a sample image of the outfit as a post.