1girl, azusawa_kohane, bad_twitter_id, beach_umbrella, bikini, blonde_hair, blue_sky, blush, chin_strap, collarbone, day, from_below, front-tie_bikini_top, front-tie_top, graphite_(medium), hat, jacket, looking_at_viewer, marker_(medium), mechanical_pencil, open_clothes, open_jacket, outdoors, parted_lips, pato_(ptro), pencil, project_sekai, red_bikini, short_sleeves, short_twintails, sky, solo, sun_hat, swimsuit, traditional_media, twintails, umbrella, undone_chin_strap, upper_body, white_jacket, yellow_eyes