3D abstract alien background blue bright cave clouds colors colours concept cool creative crystals cubic design detail digital energy fantasy fiction futuristic graphic infinity landscape lines modern otherworld pink sci fi science sky structure three dimensional vivid yellow beauty calm cloud coastal damp ecology harmony horizon light magical moisture moisturizer nature ocean peace pond pool rainwater reflection ripple ripples sea texture tide wallpaper water waterway wet angry apocalyptic brilliant colorful colourful contrast dark darkening disturbing dramatic dusk evening fiery flaming gold foreboding frightening glory golden lighting molten skies moody setting sun shadows shining silhouette silhouettes skies spreading sun sunset angles appearance decorative exterior external glass lamp lamp-post lamppost lights outdoor outdoors protected protection protective round rounded safety security shapes shine street street-light styles suburban suburbs triangle triangular urban color colour cooling edge lake lakeside mirrored outside peaceful perspectives placid reflecting reflections restful rippling sunlight sunshine surface surfaces textures tranquil tranquillity trees vegetation water's-edge wavelets blended cloud-formations colored coloured conditions formations gray grey movement setting-sun southern spread thin variations various-cloud-formations weather white winter wintry