We envy much about Matthew Williamson—his tight family, his team, his talent—but above all, we envy his air miles. Williamson is probably on a plane more than he's on terra firma. His Pre-Fall collection was influenced by a recent trip to Morocco, a country that's been a muse for artists and designers alike. Working in a palette of hyper-pigmented hues, a house signature, he conjured up lush garden prints and mosaic patterns, often together in one look. Day pieces were strong: One sweater had mohair details that almost looked like astrakhan. Clever that. This being Williamson, there was plenty of high-voltage evening glamour, as well. A short dress constructed from shards of broken mirrored mosaics doubled as a gym workout for its sheer weight. At the other end of the spectrum was a chiffon dress in a gorgeous shade of wisteria pink so delicate it looked like layers of tissue. You can't do a Morocco collection without a Talitha Getty reference, and there it was in the form of a silk blouse with split sleeves.