1girl, d, animal_ears, blue_background, blue_eyes, breasts, cleavage, domino_mask, el_condor_pasa_(umamusume), horse_ears, horse_girl, index_finger_raised, large_breasts, long_hair, looking_at_viewer, mask, monochrome, petoka, screentones, simple_background, smile, solo, umamusume, upper_body, v-shaped_eyebrows