Green gowns: Tamara de Lempicka’s painted Jeune Fille en Vert & costume designer Jacqueline Durran’s slinky satin worn by Keira Knightley in Atonement. My ruched organza sallies sunny-side up – fanciness contrasts with oversized knit cardi. Some tourists in Central Park took their photo with me because they liked my festive frock… Fashionshesays.com.