blue cloud clouds colored colors coloured colours conditions direction fine formations forward light movement shapes skies sky southern streaky sun textures thin vaporish vapourish variations various cloud formations weather white wispy contrast fluffy lighting perspectives shining sponging spreading sunlight cauliflower clouds cauliflower-like compacted cumulonimbus edges gray grey heavy strong thick above aeroplane airplane below between flight high in-between layers levels plane travel up-above appearance black & white greyscale streaks various cloud-formations