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

Please read the description.

outfit1
1girl, solo, long hair, grey hair, two side up, animal ears, hair bow, blue bow, hairclip, red eyes, turtleneck, black dress, long sleeves, sleeves past wrists, off shoulder, white jacket, open jacket, black pantyhose

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.