kousaka reina, hibike! euphonium, official art, second-party source, 1girl, black hair, black thighhighs, brown serafuku, brown shirt, brown skirt, closed mouth, full body, kitauji high school uniform, loafers, long hair, long sleeves, looking at viewer, multiple views, neckerchief, pleated skirt, purple eyes, red neckerchief, sailor collar, school uniform, serafuku, shirt, shoes, simple background, skirt, standing, tachi-e, thighhighs, transparent background, turnaround, white sailor collar