catastropart, undyne, undertale, utdr (toby fox), highres, 1girl, abs, artist name, black shorts, black sports bra, blue eyes, blue skin, breasts, colored skin, colored teeth, eyepatch, grey background, large breasts, long hair, looking at viewer, monster girl, muscular, muscular female, navel, open mouth, pubic hair, pubic stubble, red hair, scar, scar on leg, scar on stomach, short shorts, shorts, simple background, solo, sports bra, teeth, tongue, tongue out, upper teeth only, yellow teeth