Around fifteen minutes into Star Trek VI: The Undiscovered Country, Kirk recorded a log entry while in his quarters. As the camera panned around the room there were three pictures in frames visible on the walls.
What is the origin of these three pictures?
My hope is that these are famous paintings or prints and that someone with a better art education than mine will recognize them. If you have evidence that they are just creations of the movie's set designers, that will also be an acceptable answer.