Need a wardrobe reboot? Simply follow the stream of celebrities to fashion designer Nina Sarin Arias’s inaugural boutique. Her SoHo space also serves as an art gallery for rotating exhibits, such as new photographs by James Welling through a collaboration with David Zwirner. Art inspires her women’s contemporary collection, too. Spring prints and palettes reference works by Welling and Georgia O’Keeffe, while other eco-friendly looks favor sheer fabrics and bubble hems.