1girl, ass, brown_eyes, buruma, cowboy_shot, from_behind, gym_shirt, gym_uniform, light_blush, looking_at_viewer, looking_back, one-hour_drawing_challenge, open_mouth, panties, panty_peek, red_buruma, red_hair, shirt, short_hair, short_sleeves, smile, solo, standing, thighs, underwear, white_shirt, yellow_background