Where in the world is Matthew Williamson? For Resort, the design globe-trotter set his collection in Havana, which played out in three patterns: a mosaic tile print, a graphic stained-glass motif, and a splashy, gold-brushed floral. Along with signature boho-chic embroidered dresses and draped jersey gowns, he experimented with structure in jacquard coats with blouson sleeves and sexy, tailored bustier dresses. While the latter were perfect for his good-time girl, the coats felt clunky. More promising was a small selection of matching beach cover-ups and swimwear. Even girls who might not feel comfortable channeling Jade Jagger in a rainbow gown can easily work a printed bikini and perhaps a caftan while on vacation.