1girl, backpack, bag, black_hair, child, cloud, cloudy_sky, collared_shirt, flute, from_behind, hands_up, highres, holding, holding_flute, holding_instrument, instrument, music, original, outdoors, playing_instrument, pleated_skirt, randoseru, recorder, rust, sakura_inu_(itoyatomo), school_uniform, shirt, short_hair, skirt, sky, socks, solo, stack, star_(sky), starry_sky, sunset, television