The details are all in Emma‘s hair. Make sure to look closely at the photos and you’ll see the gold pieces in the shape of birds in her hair!
In one of the magical moments of the movie that happens right before the “Beauty and the Beast” ballroom scene, Garderobe (Audra McDonald) uses her powers to make Belle the yellow gown. The look is completed when gold pieces float down from the ceiling and attach themselves to the dress and her hair.
Make sure to look for the moment when you see Beauty and the Beast in theaters!