1girl, alternate_costume, animal_ears, black_vest, braid, breasts, brown_hair, clipboard, dress_shirt, ear_ornament, french_braid, grey_background, holding, holding_clipboard, holding_pen, horse_ears, horse_girl, large_breasts, long_hair, long_sleeves, looking_at_viewer, multicolored_hair, pen, pen_to_mouth, satono_diamond_(umamusume), shirt, solo, streaked_hair, twitter_username, two-tone_background, umamusume, very_long_hair, vest, white_background, white_hair, white_shirt, yamano_rokamizu, yellow_eyes