Hello, London Fashion Week! It's a short one; by the time you read this, showgoers will be comparing notes on the first three days (Vivienne Westwood, Burberry Prorsum, Giles, Preen) and winding down for the last two (Roksanda Ilincic, the whimsically named Cassette Playa). One thing we note in this Scene Stealer: This is a much more colorful, whimsical crowd than the serious "I'm working" New York showgoers. And the accessory of choice is a big, black umbrella.