Painting over a picture of Hans Hollein's 1989 architectural scale model for a Salzburg Guggenheim Museum:
https://twitter.com/ShedworksGreg/status/1054009656090284032
I really liked the verticality and layers so I started making it my own in a fantasy Roman-inspired imperial setting.
It was a great exercise to adapt that architecture into something else—nudging lines, repainting edges, and adding shadows to change the geometry itself as well as the setting and details.