Recommended to put "purple background" on the negative prompt.

School Uniform

fujiwara chika, pink hair, long hair, blunt bangs, hair bow, black bow, blue eyes, shuuchiin academy school uniform, black dress, collared dress, long sleeves, neck ribbon, red ribbon

Summer Uniform

fujiwara chika, pink hair, long hair, blunt bangs, hair bow, black bow, blue eyes, shuuchiin academy school uniform, black dress, collared dress, short sleeves, summer uniform, neck ribbon

Green Shirt

fujiwara chika, pink hair, long hair, ponytail, hair bow, black bow, hair ribbon, black ribbon, blue eyes, green shirt, collared shirt, sleeveless shirt, ribbed shirt, white skirt, long skirt