Coastal Evening

A small white lighthouse stands on a rocky headland as evening settles over the coast. Its lamp is already glowing, though a final band of pink remains along the horizon. Dark water rolls into the rocks below, leaving pale foam around the coves and ledges.

White walls make the lighthouse a small, clear landmark above the rocks. A warm point of light marks its lantern room against the cooler dusk. Below it, the headland has rough ledges with pale faces and deep cracks. Foam runs around the lower rocks in irregular bands, whereas the water farther out is smoother. A narrow pink horizon separates that dark sea from layered clouds. Much of this puzzle depends on subtle differences between blue, gray and violet.