Thanks to kristine and melissa @ lost on abc, myspace group
For pointing out that the picture on Ben's wall has changed since it was seen in The Man From Tallahassee.
Here is a reminder of how it looked in TMFT
This is how the painting now looks in TOW
Here is a screenshot comparing them both
Conclusion.
Looking at the details in both pictures
It looks to me like both are indeed the same picture, however the later picture has been re-worked/edited to change the hair style and make the woman look older.
It also looks like in the later pic the face is slightly more central.