PARIS (Reuters) - French fashion house Yves Saint Laurent hosted an evening catwalk presentation at Paris Fashion Week on Tuesday, showcasing a series of slender cocktail gowns from a catwalk overlooking the base of the Eiffel Tower. Long-legged models strode across a pale pink carpet in long, sleek dresses, some wispy at the bottom, and wrapped in sharp-shouldered tuxedos and oversize faux-fur coats, as electronic music by French DJ Sebastian played.