1girl, o, bare_shoulders, bikini, blush, breasts, brown_eyes, brown_hair, cleavage, collarbone, flower, hands_on_own_face, hands_up, hibike!_euphonium, looking_at_viewer, mou_(piooooon), oumae_kumiko, parted_lips, pink_bikini, ponytail, short_hair, simple_background, solo, sunflower, swimsuit, white_background