Most Helpful Guy
i wouldn't to me it's a sign that he may not be completely over her. I get if it there are pics of the two of them out there on fb that someone else may have posted but for him to actually have the pics uploaded to his account seems like he isn't over the person. I know I deleted all pics because I simply didn't want any girl to confuse my status with that person.
I think yu just ask him and explain how you feel. Tell him you don't think you can deal with it as much as you might want to. put theball in his court. if he is willing to keep up pictures of a girl who should be in his past then it's a fairly large sign saying that he is not entirely over her