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

Please read the description.

outfit1
1girl, solo, very long hair, blue hair, twin braids, hair ribbon, white hairband, white ribbon, mini crown, blue eyes, bare shoulders, frilled dress, white dress, detached sleeves, white thighhighs


outfiit2 (not perfect)
1girl, solo, long hair, white hair, twintails, fake animal ears, blue eyes, choker, neck ribbon, cleavage, black dress, see-through, detached sleeves, wrist cuffs, torn thighhighs, black thighhighs


outfit3 (not perfect)
1girl, solo, very long hair, blue hair, braided ponytail, beret, white headwear, blue eyes, black neckerchief, crop top, white shirt, long sleeves, midriff, pleated skirt, white skirt, white 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.