blue cloud clouds colored colors coloured colours conditions contrast fine formations light lighting movement perspectives shapes shining skies sky southern spreading sun textures variations various cloud formations weather white above aeroplane airplane below between flight high in-between plane travel up above spring tasmania Tassie thin vaporish vapourish wispy air atmosphere cloud formation clouded cumulus dark deep formation gray grey hanging heavy huge massive meteorology nature rain stratus structures water birds bleak darkness ocean sailing ship shade shadow yachts crescent distant moon big big clouds soft summer wheather