A red door beckons beneath a light. An exit that grants entrance to somewhere else. The light contained by the brick wall and the overhang is a beacon showing where to go. Just in case the red “exit” sign or the large number four weren’t obvious.
Although everything is straight lines and right angles, it’s still an interesting progression. But it’s just the boxing by the various parts. An overhang here. A corner there. Some courses of bricks elsewhere. But a pattern emerges. The corners funnel you towards the door, gathering everything in and guiding it through.