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

Please read the description.

outfit1
aatomari, long hair, ahoge, twintails, hair bow, multicolored hair, rabbit ears, maid headdress, x hair ornament, thick eyebrows, choker, criss-cross halter, yellow necktie, bare shoulders, black gloves, frills, layered skirt, black skirt, single thighhigh

outfit2 - (not perfect)
bbtomari, long hair, low twintails, ahoge, rabbit ears, animal ear fluff, hairclip, choker, camisole, off shoulder, white jacket, red shorts, striped thighhighs

outfit3 - (sample images)
bbtomari, long hair, low twintails, ahoge, rabbit ears, animal ear fluff, white headwear, hairclip, serafuku, red neckerchief, white shirt, swimsuit under clothes, school swimsuit

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