I got interested in those kinds of spatial illusions in paintings, and I tried to do more complex things like Snake Building , where I work up the building into planes. My buildings also lean, like the tower of Pisa. That was inspired by seeing Mexico City, where a lot of the taller buildings are built on a lake bed and do not have good foundations and are leaning. It was funny to walk around the city and to see buildings tilting in different directions. I did a lot of paintings based on that.
Illusion is easier to manipulate in painting.
In sculpture the illusionary quality is harder, but in a piece like Twin Towers , the painting adds to the illusion. Twin Towers is on a human scale. You've made the viewer a giant and his head is in the clouds next to the skyscraper. I think Twin Towers probably would not have worked as a painting. But putting the viewer in the same space is different.