katsu (24791909), oumae kumiko, hibike! euphonium, commentary request, highres, marker (medium), traditional media, 1girl, branch, brown eyes, brown hair, brown serafuku, brown shirt, collarbone, euphonium, holding, holding instrument, instrument, kitauji high school uniform, lens flare, looking at viewer, mouth hold, music, neckerchief, playing instrument, red neckerchief, sailor collar, school uniform, serafuku, shirt, short hair, solo, upper body, white sailor collar, winter uniform