weight 0.9 is best.

This model is based on the SDXL Pony Model.

I created this LoRA as requested.

outfit1
aahanako, pink hair, halo, ahoge, single braid, hair bow, green eyes, large breasts, school uniform, blue sailor collar, pink bowtie, sailor shirt, white shirt, short sleeves, wristband, pleated skirt, white skirt

outfit1-1 (bikini under clothes)
aahanako, pink hair, halo, ahoge, single braid, hair bow, green eyes, large breasts, blue sailor collar, pink bowtie, crop top, sailor shirt, white shirt, short sleeves, bikini bottom only, bikini under clothes, striped bikini

outfit2
aahanako, pink hair, halo, ahoge, single braid, hair bow, green eyes, large breasts, collarbone, competition swimsuit, black one-piece swimsuit, bare arms, covered navel

outfit3
aahanako, pink hair, halo, ahoge, single braid, hair bow, green eyes, large breasts, collarbone, collared shirt, white shirt, wet shirt, long sleeves, bare legs

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

In the sample images, used hires.fix and the extension Adetailer.