weight 0.9 is best.

This model is based on the SDXL Pony Model.
It doesn't work well with Animagine XL Checkpoint.

I created this LoRA as requested.

outfit1
aaharuka, pink hair, twintails, drill hair, aqua eyes, breasts, magical girl, pink bowtie, brooch, pink dress, white shirt, puffy sleeves, short sleeves, elbow gloves, pink gloves, frills, pink thighhighs

outfit2
aaharuka, pink hair, twintails, drill hair, aqua eyes, breasts, pink bowtie, brooch, ????, maebari, heart pasties, elbow gloves, pink gloves, navel, pink thighhighs

outfit3
aaharuka, pink hair, twintails, drill hair, aqua eyes, breasts, serafuku, green sailor collar, yellow neckerchief, white shirt, long sleeves, pleated skirt, green skirt

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

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