The covers are shot by Alexi Lubomirski. (source)
Click here to view last year cover featuring Rosie Huntington-Whiteley, here to view 2017 cover featuring Sam Rollinson, here to view 2016 cover featuring Nicole Kidman, here to view 2015 cover featuring Kate Winslet, here to view 2014 cover featuring Rosie Huntington-Whiteley, here to view 2013 cover featuring Rachel Weisz, here to view 2012 cover featuring Georgia May Jagger, here for 2011 cover with Gwyneth Paltrow, and here for 2010 cover with Cindy Crawford.