A newcomer on the couture circuit, Serkan Cura presented a lineup of seven looks at the new Ra shop, set to open today, that displayed his penchant for working with feathers and corsetry — a skill he developed during a four-year stint at Gaultier couture. Some of his pieces were embellished with an explosion of white egrets, others with multicolor Ara parrot feathers, all to striking effect. But Cura’s effort felt a little like a work in progress. He concentrated his fantasy feathers on the tops or bottoms of corseted silhouettes, leaving the rest of the flesh-colored tulle and lingerie pieces untouched and looking like half-plucked birds.