Dress: Floral Print Peplum Dress by Milly (Thanks @MillybyMichelle!)
Marnie Michaels (played by Allison Williams) on Girls on HBO was spotted wearing this yellow and blue floral peplum dress on Girls on episode 'She Said OK' (3x03) in Jan 2014. Marnie's Dress is the Floral Print Peplum Dress by Milly .