weight 0.7 is best.
I created this LoRA as requested.

Please read the description.

outfit1
1girl, solo, long hair, blue hair, twin braids, hair ornament, yellow eyes, hair over shoulder, school uniform, red bowtie, blazer, (blue jacket:1.2), plaid skirt, brown skirt


outfit2
1girl, solo, long hair, blue hair, twin braids, hair ornament, yellow eyes, hair over shoulder, chef, white shirt, buttons, white pants

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

Due to the small number of images in the dataset, the character's clothing or pose may not be fully realized.