Ruth Negga cover is by Agata Pospieszynska, Kate Winslet is by Alexi Lubomirski, and Jodie Foster is by Richard Phibbs. (source)
Click here to view last year cover featuring Keira Knightley, here to view 2015 cover featuring Lily James, here to view 2014 cover featuring Carey Mulligan, here to view 2013 cover featuring Cate Blanchett, here to view 2012 cover featuring Marion Cotillard, here to view 2011 cover featuring Yasmin Le Bon, Helena Christensen, Cindy Crawford, Naomi Campbell, and Eva Herzigova, here for 2010 cover with Natalia Vodianova, and here for 2009 cover with Victoria Beckham.