angry apocalyptic approaching storm Australia black bright brilliant cloud clouds colorful colourful contrast contrasting dark darkening disturbing dramatic dusk evening fiery flaming gold foreboding frightening glory gold golden light lighting molten skies moody setting sun shadows shining silhouette silhouettes skies sky southern spreading storm storm clouds stormy sun sunset abstract appearance background blue colored colors coloured colours conditions fine fluffy formations movement perspectives puffs shapes spread textures thin vaporish vapourish variations various-cloud-formations weather white wispy