marvelous sunday (umamusume), mayano top gun (umamusume), umamusume, commentary, highres, untranslatable commentary, 2girls, animal ears, bare shoulders, blue one-piece swimsuit, bow, breasts, collarbone, ear ornament, flat chest, hair between eyes, hair bow, hair ornament, horse ears, horse girl, large breasts, looking at viewer, multiple girls, navel, one-piece swimsuit, open mouth, orange eyes, orange hair, swimsuit, twintails