The theme 2015 for the windows was Brilliant Holiday and Berdorf teamed with Swarovski crystals (who are celebrating their 120th anniversary). Each window uniquely tells a glamorous tale of fashion set in over 7 million Swarovski crystals.
The choice of pattern for the queen's robe is interesting. It is a mix of symbols from castles to crowns and everything in between. There are also quotes, one of which is "A man with a head on his shoulders is worth a dozen without".