I made this sidewalk using the same technique as my other shops. After painting the perimeter of the base with a medium dark gray and the edges with a darker gray, I cut individual sections from a 3″-wide strip of 1/32″ balsa wood. Once the pieces were cut out, I sanded the adjoining edges on a slight angle so that the base would show through better, like sidewalk “cracks.” Then I mixed mortar mix with light gray paint and brushed this on for a light stucco effect. Since the mortar mix darkens the paint, I later went over it again with another coat of paint.
After gluing the pieces in place, I sealed the sidewalk with Krylon Matte Finish spray varnish.