1girl, absurdres, ahoge, alternate_costume, alternate_hairstyle, animal_ears, bass_guitar, blurry, blurry_background, breasts, cleavage, closed_mouth, collarbone, commentary_request, copano_rickey_(umamusume), cosplay, electric_bass_guitar, fingerless_gloves, fretless_bass_guitar, gloves, halloween, hat, highres, holding, holding_bass_guitar, holding_instrument, horse_ears, horse_girl, horse_tail, instrument, long_hair, looking_at_viewer, low_twintails, mayano_top_gun_(rockin'_mewmeow)_(umamusume), mayano_top_gun_(umamusume), mayano_top_gun_(umamusume)_(cosplay), medium_breasts, midriff, navel, red_eyes, ribbon, smile, sodemaru_unagi, solo, standing, tail, twintails, twitter_username, umamusume