Something looks familiar here...
Do you Anne of Austria is wearing the same dress seen on Marie de Medici (left)? Who pulls it off better? I still love the color and details of this gown. (plus I am on a pearl kick lately so it really appeals to me!) You can rate Anne's (Marie's?) dress at The Dreamstress blog
(left) Frans Pourbus the Younger, Marie de' Medici, Queen of France (1573-1642). 1610, oil on canvas. Intended for Petite Galerie of the Palais du Louvre. Musée du Louvre.
(right) Peter Paul Rubens, Anne d'Autriche. 1577-1640, Oil on canvas. Norton Simon Museum.