Cuteness is a prerequisite to being a cartoon character, ergo, they look nothing like real people. The eyes are always disproportionately big. Several other features may be exaggerated as well. Jirka Väätäinen, a Finnish artist, got tired of them looking too…well, cartoonish. So he went out and did what any self-respecting artist should do. He made his own version of them. He took digital images of the characters (mostly princesses) and digitally manipulated them to look more like actual people without actually resorting to racial stereotypes. The beloved Disney characters are utterly human, yet perfectly recognizable.
Take a look at more of his work here.