abstract appearance background banks cool dark ducks leisurely light lighting outdoors peaceful reflection reflections relaxing ripples rippling river river-banks river-views riverside seating seats serene serenity shade shadow shadows sparkle sparkling sunlight sunshine swans tranquil trees vegetations water water-birds waterways black & white greyscale alternative alternative-energy alternative-power alternatives angles bridge clouds concrete darkening energy exterior external glass lamp lamp-post lamppost lights outdoor path protected protection protective renewable safety security shapes shine sky solar solar-panels styles atmosphere atmospheric black cloud color colored colorful colors colour coloured colourful colours contrast contrasting dramatic dusk evening glory gold golden mood moody pink setting-sun shining silhouette silhouettes skies spreading street-lights sun sunset beach distance distant expanse golden glow ocean ocean sunset outside sand seashore shoreline sunset’s glow tide waves