The January 2014 InStyle shows that these models sported nail art to match every ensemble.

For the Geometric Lines look, coat nails with a minty green polish like Tracy Reese for Sally Hansen's Mojito, let dry, then use a fine-tipped brush or edge of an index card to sketch grid lines in navy blue like Tracy Reese for Sally Hansen's Batbano Blue. 

To get the Tortoiseshell effect, paint one layer of a terracotta polish such as Sally Hansen's Clay/Terracotta, let it dry, then use a makeup sponge with chocolate brown like Sally Hansen's Cinnamon/Red Brown to dab over your nails for the marbled result. 

This ombré Glitterfall look is achieved by swiping nails with one coat of shimmery gold like Butter London's 444 then applying a shimmery black like Butter London's Black Knight on the tips and blending down.