good quality, 1girl, black eyes, black hair, black one-piece swimsuit, blue one-piece swimsuit, blue sailor collar, brown eyes, by katahira masashi, competition school swimsuit, competition swimsuit, cowboy shot, hairband, highleg swimsuit, looking at viewer, red neckerchief, sailor shirt, selfie, serafuku, short hair, simple background, smartphone, solo, standing, two-tone background, white background