Xbooru - 1 girl 1girl 2010s 2d 2d (artwork) alternate costume anthro anthro only ass ass crack blue body blue skin blush blush lines butt crack cape cosplay digital media (artwork) ear fins eye patch eyepatch female anthro female only fish fish girl looking at self looking down looking down at self marine midriff monster pants papyrus (cosplay) ponytail red cape red hair red scarf scarf sharp teeth shorts slit pupils solo anthro solo female undertale undertale (series) undyne unknown artist video game character video games white background yellow sclera