>>742973Nolan's hair is very early south park, in that it's just a flat messy shape that vaguely looks like a hairstyle.
Mute and Delly look like they probably have similar hairstyles, Mute's is just messier while Delly's is layered. Here's a pic of an interpretation of Mute's hair. It is shoulder length hair, the front cut unto messy bangs with a cowlick on top, and as her hair gets longer it begins to curl up at the ends. My hair actually does the same thing as that if I grow it out.