I think this is one of the best architectural studies I have ever done. I did it exactly five years ago, on site in the courtyard of an office building where I was waiting for regular maintenance on my car to be done. It's done in ink and markers, and was finished in the studio later that evening. Size is about 6 inches square. The blue-ish thing in the center right is a waterfall fountain. The place is a surprisingly peaceful corner in the tumult of Tysons Corner.