Before A Show, Tuileries, Paris, February 2014.
Such a pretty way to wear neutrals (love her ankle socks + court shoes) and transition from winter into spring. 
Recreate her look (kind of):
Pretty white/off-white dress: J.Crew Victorian Abbey embroidered dress,  Vanessa Bruno Athe cotton lace dress, Madewell Eyelet Hideaway dress, ASOS Premium dress with drop waist and embroidery,  Catherine Malandrino button down shirtdress or Madewell Latticework dress
Trench: ASOS Duster coat with Stormflaps, A.P.C. Dandy Manteau coat, Vanessa Bruno Alistair twill trench coat, or Nina Ricci contrast cuff trenchcoat
Leather backpack:  Madewell leather backpack, or Tory Burch Amanda backpack
ASOS Mixed knit ankle socks