The joke is that the statement could have two meanings.
1. You are taking creative art to a higher level/plane in a more modern perspective, or 2. (The actual statement) that you have actually put art on a modern airplane.
That is why I called it a dumb joke; I have a very warped sense of humor. Kind of like the humor that was used on the Vaudeville stage in the 1920s and 1930s. (Yeah, I am almost that old, but not quite)
John