This is St. Finbar's, a Catholic church in Burbank on Olive, near sunset to get some shadow contrast, done from a photo. I made some mistakes of both perspective and proportion, but I think it's still recognizable. I may try it again later—the watercolor postcards I bought are not very cooperative, and I think I may cut my own out of larger sheets instead.
LePen and watercolor
St. Finbar's at sunset