NEW YORK — Location, location, location. Take the sleekest uptown leather suit, bring it down to the East Village and the look suddenly adopts an edgy attitude. And if it’s an already quirky look — a long, tie-back bustle skirt, for instance — it’s right at home on St. Marks Place. While solid black is still in downtown favor, there’s also a blitz of bold new colors, embroidered or embossed surfaces and python prints for day or night.