We’re throwing it back a few years to our most popular pictorials of Spring 2015 with this special Editor’s Choice feature. Get reacquainted with Katya Clover, Vanessa Alvar, Vivien, Anita Serena, and Brandi Alexander. First, it’s a rainy day on set with Brandi. “Vancouver’s a really beaut iful city, but it is often rainy,” she says of her hometown. “In that sense, this pictorial is very Vancouver — a little rain, a trench coat, an umbrella, and nothing else — it’s so me!…