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

Please read the description.

1girl, solo, long hair, black hair, ponytail, parted bangs, brown eyes, school uniform, green bowtie, white shirt, short sleeves, sweater vest, yellow vest, plaid skirt, green skirt

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.