Actually, I think that, in the game, the eyes and mouth of everyone are transparent. EDIT: That would look weird, though. END EDIT.
Why is everyone happy besides

, which is with the same mood as this smiley? You could make everyone be the same mood as their correspondant smiley!

It isn't hard. Look at the changes.
Btw: I think that

's mood is half-happy and half-sad, but I've read in this forum that he's bored. Which of the moods is the right one?