1girl, a-545_(girls'_frontline), alternate_costume, backpack, bag, blonde_hair, blue_skirt, blue_sky, blurry, blurry_background, bow, braid, euphonium, feet_out_of_frame, from_side, girls'_frontline, hair_bow, holding, holding_instrument, hozumi_oozum, instrument, long_hair, long_skirt, looking_at_viewer, multicolored_eyes, open_mouth, outdoors, red_bow, school_uniform, shirt, short_sleeves, side_braid, simple_background, skirt, sky, solo, standing, white_shirt