11 Best Fashion InstagramsStrike a PoseAnna Wintour makes her Instagram debut, Margherita Missoni lounges in the pool, and Bar Refaeli meets her number one fan. Plus, more of the week's best Instagrams.Erin CunninghamUpdated Jul. 11, 2017 9:16PM ET / Published Aug. 24, 2013 4:45AM ET