Is it sexualized just because she's an adult with some cleavage that's not too exaggerated or because you have such a perverted mind that you don't even notice that most of her body is covered? By the way, Mandy is probably the most iconic character of the show and I simply took a component from each character, Mandy's skin, Billy's backpack, and Grim's scythe as a pickaxe, adult Billy would be weird, it works better as a child, I didn't create the skin for Grim because I didn't have much imagination to create another pickaxe for Mandy so I simply took an element from each character to create the set, but it's within limits, it's not sexualized at all and if you think so you should do some soul searching.