From what I've seen online, the appearance of your character's face depends on your answers to the questions you're asked while on the train. But I haven't found anything on how (or even if) I can change it without starting over. I didn't know this when I started, and now I'm stuck with a rather weird face. Is it possible to change it? How can I do it?
You can't change your eye shape in the game. You can change your hairstyle and eye colour at Shampoodle once it's unlocked.