seamless blue cloudy background

background texture pattern repeating continuous seamless paper cloudy cloud swarm eddy cloudiness overcast nebulosity nebula nebulosity fogginess mistiness haziness turbidity fog mist haze smoke exhalation brume veil voile veiling nun's befog bemist becloud bedim fume reek sky heaven empyrean ether sphere azure bright varicoloured motley varicolored variegated colors color blue yellow