Here's a watercolor, "Star in the Window", of my backdoor neighbor's house here in Cedar Falls, Iowa. It was done on the longest night of the year (2011) from a second floor window. It's a good thing I'd memorized what color is where in my palette:
"Back Door Light", a Neocolor II, was done a few nights later, looking out another second floor window to my side neighbor. No moonlight, only the illumination from under the door overhang and the reflection off a more distant house as seen through the silhouetted trees. I really got eye strain from doing this one and all my crayons ended up on the floor. It was hard to keep it all together, working in the dark.
"Moonlight from Lapa" was done on the first night I was in Lisbon for the Urban Sketchers Symposium this past July. We were staying in a flat on the top floor of a building that was on one of Lisbon's many hills looking out over the Tejo River. There were no screens on the windows (therefore no reflection to contend with) and the moon cast more than enough light to see. This night sketch was a cinch.
This was done at a laundromat in downtown Cedar Falls for an Urban Sketchers Theme of the Week. Inside was bright. What was outside was unclear--I drew what I saw, but it came across as an almost abstract smattering of lit shapes and colors.
From my bedroom window, I drew in the dark, hardly able to see what I was putting on the page for "Moonrise and Contrail". When I turned on the light to look, I added white to the moon and its rays.
This was my first drawing of the night. It was 1977, I was backpacking in Crete with a friend. We were sleeping out in the Samaria Gorge. The moon was SO bright. I was too scared to sleep; we were told there were scorpions. I sketched a lot on this trip. I had only one drawing tool: a technical pen with black ink.