User blog comment:D. Cello/AC: Revelations Gameplay Trailer/@comment-4316136-20110819130510

The second pic is before Altair was a master assassin (the first time). As Altair saved Al Mualims life, which led to Altair becoming a Master Assassin. I remember reading something about it in The Secret Crusade. It was mentioned in one of the Altair and Abbas scenes.