Untitled AI art by @gentle-palm4

Drawing in black and white of a gigantic cavern with a large central underground lake. The walls of the cavern are barely noticeable because of its large size. The lake is connected to a river at the front and flows at the back. In the center of the lake, there is an island on which stands a gigantic natural round stone column that merges into the ceiling of the cavern. An entrance at the base of the central pillar.