;)
William Van Doren, SKETCHYTOWN. Sunset from Water Street Parking Garage, Charlottesville, Va. Oil on Arches watercolor block, 17 x 23.
Under the paint there was (and is) a pencil sketch of part of downtown Charlottesville as seen from the top of the Water Street parking garage, with the sun setting behind Observatory Hill (???). But, well, then came the paint. And a bit of the sketch revived in paint.