I traded a Lati Belle for Marilla, she was Muffin from scrapfreakgirl. Every time I saw pictures of 'Muffin' with blond hair I thought I'd try blond on Agnes, but it never worked. I knew Agnes wasn't meant to be blond and thought it was strange, knowing Agnes and 'Muffin' are the same sculpts and are so different.
Now I know why. Look at their skintones, Marilla is a little older and has a lovely 'normal' skin, Agnes has a beautiful pale skintone. I love them both. :)