Another Arai Kei character, this time Akira Oonishi (aka Shot-put girl) from Hougan Kanojo). As with the other Arai Kei characters, adding color to the prompt and monochrome to negative is recommended as is specifying a hair/eye color. Toned female helps to give her muscle definition without too much beefcake when her body is exposed.
Moving "tan,dark-skinned female,toned female" to the negative prompt gives you untanned skin. Some images were NSFW so adding that to the prompt/negative when needed is recommended
Prompt:
OonishiAkira,large breasts,medium hair,ponytail,tan,dark-skinned female,toned female,dark brown hair,brown eyes