Joined the SF Sketchers in Union Square for the USk 24 hr Global Sketchwalk for the 10th anniversary of Urban Sketchers organization. As always, I arrived more than 1 hour late, so I started straight into painting after I got off the Bart station. It was an unusually warm autumn/winter day in SF... I remember I was huddling indoors about the same time last year. Also thanks to the low angle of the sunlight, a few buildings that are usually in shadows had some very nice sunlit surfaces.
What first caught my eyes were the crowded signs on the right, but the building in the background (Humboldt Bank Building, 1908, more info here: https://untappedcities.com/2012/03/30/architecture-spotlight-the-humboldt-bank-building/) The dome in the sunlight looked very impressive!
After the group meet at the Apple Store, I hopped back down to Union Square (instead of getting some proper lunch) because there were so many interesting shadows criss-crossing the narrow streets there! I liked this one in particular because the shadow came down halfway on the "Hotel Stratford" sign. (I would like the red to be a little brighter, but it was too late when I realized...oh well) The tracks on the road are for the Powell Street Cable Cars.