Wow, that Merida doll is really cute! One problem I have with most Disney girl dolls is that they make the characters look too old, but her face looks appropriately young.
Almost all Disney Princess dolls have incorrect faces. I’ve been pretty lucky in getting the accurate ones. I still love these dolls, though. And like you said, they have great hair.
Like the TS3 Ken, the first issue’s face was just a generic Ken face, but the second issues looked like the film version (which is based off the Animal Lovin’ Ken).