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

Please read the description.

outfit1 (twintails)
aasena, twintails, multicolored hair, hair ornament, head wings, beret, black headwear, black choker, black dress, clothing cutout, long sleeves


outfit1 (long hair)
aasena, long hair, multicolored hair, hair ornament, head wings, black choker, black dress, clothing cutout, long sleeves


outfit2
bbsena, short hair, multicolored hair, hair ornament, black choker, bowtie, collared shirt, hoodie, black jacket, open clothes, long sleeves, grey skirt, pleated skirt, black thighhighs

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