Four panels drawn while flying, these are just my attempt to visualize some imaginary settings. Clockwise from upper right: A modern airport, a swamp shack, a fantasy type castle & a walled ancient Asian walled city.
Some more doodles, the drawing on the right was drawn after my wife had a dispute with a girl on the plane who insisted her 3 bags were actually 2 and should be allowed.
A couple more settings. The unfinished drawing on the right was inspired by a dream I had as a kid about an old man who lived in a house that was more a marine museum/aquarium.