Takanashi Nagisa (小鳥遊渚), from Carn's manga Takanashi Shimai no Junan (小鳥遊姉妹の受難). The younger sister who gets Carn'd hard. Seems to work well but was trained on NSFW so take note. I've used orange for the hair color and blue eyes. Using "hair down" in place of "ponytail,hair ribbon" will allow you to have her hair down.
Prompt
takanashinagisa,orange hair,blue eyes,long hair, ponytail,hair ribbon