A character should only have a maximum of 5 colors on them, including black and white. Also, only lighter skin should be represented as being pure white. If a character has a darker skin tone, please do represent that.
Characters in the style are drawn a lot goofier than they actually are, typically with slightly more chibified proportions and more cartoony expressions. Here's a comparison of 01's sprites for "wacky" and standard FNF.