A tangency happens when two objects in your drawing touch instead of overlapping. This can attract attention where you don't want it and confuse the sense of depth.
Sometimes a real scene is full of tangencies, as it was in this airport sketch. Normally you’d want to change the viewpoint or move elements around. But just for fun, I drew it the way I saw it. It’s so awkward I sort of like it.
Previously on GJ: Tangencies