collection of blurred soft pastel different natures color palette smooth wavy gradient flow textures backgrounds

abstract art backdrop background backgrounds banner beautiful blend blue blur blurred blurry bright collection color colorful dark defocused design different effect fade flow flyer fog glow gradient graphic grey landscape light mesh mist modern mystic natural nature natures orange palette pastel pink poster purple red screen set shape smooth soft square template texture textures trendy vector vibrant violet wallpaper wave wavy web yellow