Sofie Valkiers of Fashionata, before A Show, NYC, September 2015.
A slightly different version of the off-the-shoulder top: really pretty for steamy mid-summer weather. 
Recreate Sofie's look (kind of):
Fitted off the shoulder top/Bardot top — MSGM Off shoulder top, Topshop Bardot off-the-shoulder top,  Alice + Olivia Gracelyn off the shoulder ribbed top, Saloni Carrie top, Alix Wooster off-the-shoulder bodysuit, Mugler One-shoulder Cady top, Preen by Thornton Bregazzi Kailey top, Topshop stiped Bardot top, Whistles Rib Knit long sleeve Bardot, Nordstrom x Caroline Issa Angel off the shoulder top, Fashion Union Off Shoulder body with wrap open back or Alice + Olivia Grant off the shoulder top
Paperbag waist shorts — 3.1 Phillip Lim Chambray Paper Bag Waist shorts, Anglomania Kung Fu shorts, Isabel Marant Poplin Neddy shorts, or L'Agence Alex Paper Bag shorts
Gladiator sandals — Laurence Dacade Hanna studded sandals, Francesco Russo leather gladiator sandals, Freebird by Steven leather gladiator sandals, Francesco Russo Buckled leather sandals, or Michael Michael Kors Darby sandals