abstract appearance background blended blue cloud clouds colored colors coloured colours conditions fine formations light shapes skies sky southern spread spreading sun textures thin vaporish vapourish variations various-cloud-formations weather white wispy cauliflower clouds cauliflower-like compacted cumulonimbus edges gray grey heavy strong thick various cloud formations movement sunlight abundance bits bulk chips chopped color colour cut cut-up quantity rough selection Sizes split surface surfaces texture textured varied various wallpaper wood woodchips