Mr Negative, from Moon Girl and Devil Dinosaur.

I’ve always liked Mr Negatives design in general, it’s simple but also cool, but for some reason this design in particular is the most eye catching to me. I don’t really know how to properly explain it really. I think it’s the shows art style and animation that make it so good, it’s very pleasing to look at. I also like how his outlines are also inverted, makes his design pop out more to me.