In Carolina Herrera’s pursuit of “lightness” and “fluidity,” the buzzwords in her spring show notes, she concentrated on slim silhouettes with a little flutter that cut from filmy fabrics — chiffon, organza, tulle and georgette — a logical means to achieving her goal. Mission accomplished on the collection’s relatively simple things, such as an ivory crepe halter dress with a gentle cowl neckline and a white column gown done in tonal geometric jacquards with a caped shoulder. Such were light and lovely. However, some of the lineup featured variations on an abstract print in jarring combinations of pastels with flashes of orange and black; there were also odd pairings of polished jackets and flounced silk shorts. In some ways, these clothes seemed like a confused bid to skew obviously young and didn’t jive with Herrera’s breezy elegance elsewhere, as in the eveningwear — two pin-tucked, embroidered evening gowns. Similarly, a couple of lace shirtdresses, sheer and cut below the knee, radiated a subtle edge, while staying truer to Herrera’s signature of impeccable polish.