Russian model Katya Riabinkina, after Chanel, Paris, October 2013.
Another (see also Nasiba and Kremi wearing their turtleneck sweaters) way to style a turtleneck sweater: with a leather skirt and ballet flats. 
Recreate Katya's look (kind of):
Turtleneck sweater: Nili Lotan 18-8 oversized sweater, Stella McCartney turtleneck sweater, Helmut Lang funnel neck sweater, Jil Sander wool-blend turtleneck sweater, New Look cable sweater, Vince Travelling rib turtleneck, or Vince Cross Diagonal knit turtleneck
M.Patmos seamed leather skirt, J Brand Maxine zip-front leather skirt, Topshop leather calf pencil skirt, ASOS a-line skirt in leather look, or Veronica Beard The leather midi skirt
ASOS Laila ballet flats, Sam Edelman Noah hidden wedge flats, Lanvin ballet flats, or Tory Burch Eddie Ballet flats