Art dealer Vladimir Restoin Roitfeld opened his latest show “Hue + Cry” Thursday at Sotheby’s for a chic crowd from a veritable alphabet soup of fashion magazines, including W editor Giovanna Battaglia, V’s Stephen Gan and Roitfeld’s mom, Carine, who’s just moved here to launch CR Fashion Book. Alice + Olivia fashion designer Stacey Bendet — who told us she’d just bought a Jay Miriam painting from Half Gallery on the Lower East Side — was still in a shopping mood. “I’m more of an impulsive purchaser,” Bendet said of her technique. “I’ll see the colors of something or think something will inspire a print, and I’ll buy it.” Guests then headed to Casa Lever to celebrate the opening.