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

Please read the description.

outfit1
aawendy, long hair, twintails, hair ornament, bare shoulders, green dress, sleeveless dress, armlet, bracelet


outfit2
aawendy, long hair, twintails, hair ornament, school uniform, yellow bow, red jacket, long sleeves, black skirt, black thighhighs

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

twintails, hair ornament : If you don't enter these two prompts, wendy's hairstyle will be changed to long raw hair.