Dutch contemporary fine-art Amsterdam. Urban landscapes, city views, cityscapes, townscapes, canalscapes. Oil paintings and sketches. Koppelaar is best known as a contemporary painter of Amsterdam cityscapes. Amsterdam, its canals, streets, the river Amstel, painted in vivid brushstrokes in oil on canvas. Small oilsketches painted en-plein-air and large canvasses produced in his studio.