Leaked pictures are quite difficult this time around, as they appear, and then disappear. So if you have not had the chance to see a few of the pics, they are still floating around. And they will vanish quickly. My morning look through the inter-blogosphere turned up these.
Leaked pictures are dying quickly.
http://www.lounge.belloflostsouls.net/showthread.php?33376-Space-Marines-Rumor-Roundup/page31
http://latabernadelaurana.blogspot.co.uk/
https://www.facebook.com/groups/109577025797447/
http://40kwarzone.blogspot.ca/2013/08/space-marines-pictures-leaked.html