abstract art painting cityscape background painted texture with dark night futuristic sci-fi urban buildings silhouette

abstract alien art artwork backdrop backgounds background backgrounds banner black blue blur blurred bright brush buildings canvas city cityscape clouds color colorful colors concepts cyberpunk dark design digital dreams dusk dusty fiction fog future futuristic generic grunge header illustration industrial landscape light lights mystical neon night paint painting panorama panoramic paper pattern planet retro rough scene sci science silhouette sky skyline soft space stroke strokes sunrise sunset template texture turquoise twilight urban wallpaper