It is celebratory, charming and accessorized to a fare-thee-well — Miuccia Prada’s sophisticated cruise lineup at Prada, that is. Many of the looks give a gypsy-caravan dimension to the idea of Sunday best. Dresses, perennial favorites here, turn up in appealing variations from ruffled, floral-print versions in bold, zesty prints that nodded to the Thirties to sleek black styles shown with colorful accessories — all presented in postcardlike country settings depicting imaginary landscapes. The vivid costume jewelry is made from methacrylate, a lightweight glasslike material. Shoes include platforms and pumps with faux-coral or beaded embellishments and ballerina flats that tied around the ankles, while the bags are fashioned from canvas and exotic skins, or mixes of the two.