I think it's funny that they treat scars as if they ruined the face when the artwork only shows a blemish on the face, I remember Todoroki in My Hero Academia who only has a little red spot that doesn't affect his prince face at all while in Avatar we have a better representation of a real scar on Zuko where it doesn't just blemish his face, it makes the side of the scar always have a more closed eye, it even looks swollen which actually changes his appearance, it looks like a real scar not a scar make-up like in these works.