When an actor
addresses the audience directly, she is said to be “breaking the Fourth Wall”. This term has an intuitive sense to it.
The front of the stage is seen as a wall that the actors do not see past (the
actors generally seem to be unaware of the audience). When the actor addresses
the audience, she breaks through this wall to interact directly with the
audience.
Depicted lush landscapes and happy peasants
It looks like it just needs to be cleaned unless you’re referring to the paneling in which maybe in the past it was broken and needed to get welded back together.