Thanks to my student Tommie Larsen for providing the good quality digital SLR images from which this demo presentation was extracted.

I zoomed in and cropped around the painting in the rest of the photos of this demo and increased the contrast in the mid-tones so that the canvas would not be lost in the shadows. This causes the area around the canvas (including my arm occasionally) to be a bit washed out.

The glancing sunlight light is painted onto the bridge leaving out the underpainting color for the shadows.

The direct sunlight is painted onto the bridge. I use a number 12 flat brush loaded with paint, to state the raking trickly highlights that play across the aggregate in the cement.

Halftones and lights are added to some of the foliage behind the bridge and patterns are painted in the water to represent the reflections of the bridge and foliage.