Mt. Enderton painting

The Mt. Enderton painting is a backer reward item in Obduction that was put in the game for an unknown Kickstarter backer. It is found in the corner of the Trainyard and features a spiral structure (likely Mt. Enderton). There is an archway with some form of writing, as well as a banner at the bottom of the painting that reads, "WELCOME TO MT. ENDERTON".