Table of contents: 30: On Murphy: Sleeveless sweater ($1,500) and skirt ($2,200); Calvin Klein, NYC. Alexander McQueen boots, $1,390; alexandermcqueen.com. On O’Donnell: Jacket ($6,900) and bag ($4,600); select Chanel stores. Dolce & Gabbana blouse, $1,245; select Dolce & Gabbana stores. On Garrison: Jacket ($7,350), skirt ($4,600), and bag ($6,300); select Chanel stores. Salvatore Ferragamo blouse, $960; Salvatore Ferragamo stores. Mizuki earrings, $2,800; Bergdorf Goodman. Gucci boots, $2,300; gucci.com. Manicure, Yuko Tsuchihashi. Tailor, Hailey Desjardins at Stitched. Cover look: 30: Front cover: On Bae: Dress, $5,795; select Dolce & Gabbana stores. On Johansson: Dress, $2,690; Marni stores. On Padukone: Dress, $6,490; Oscar de la Renta stores. On all: Flowers in hair from Michael George Flowers; michaelgeorgeflowers.com. Inside cover: On Seydoux: Top and pants, priced upon request; select Louis Vuitton stores. On…