Art cameo in EE

I don't know if this has been brought up before, but hey... I'm gonna say it anyway.

I was in the Friendly Arm Inn, and my eye was caught by this painting on the wall:


It's apparently this picture here:


What's interesting is that it's a Dragonlance picture (a flying citadel) in a Forgotten Realms setting.
Maybe it got here through a magic traveling sphere...

Did everybody know about this already?
Are there any more famous paintings you found and you want to share?
Was this in the original BG or is it an EE thing?