Might pre-processing too much, plus small breasts, makes her looks much younger. That's more like her on the single CD cover though. (It is recommended to add medium breasts in positive prompts, and loli in negative prompts.)
Prompts:
Sumimi dress: misumi uika, black dress, sleeveless dress, bare shoulders, bare arms, belt, white belt, white necktie,
Doloris outfit: misumi uika, doloris, shoulder cutout, black pants, corset, long sleeves, bare shoulders, black dress, puffy long sleeves, black shirt, belt, choker, white ascot,
Summer school uniform: misumi uika, serafuku, white sailor collar, short sleeves, white skirt, blue shirt, pleated skirt, purple neckerchief,
Casual: misumi uika, white shirt, brown skirt, short sleeves,