abstract appearance autumn background blended blue cloud clouds colored colors coloured colours conditions fall fine formations light movement shapes skies sky southern spread spreading sun textures thin vaporish vapourish variations various-cloud-formations weather white wispy blue sky brown brown leaves colorful crown green Green leaves leaf leaves orange leaves plant red tree tree crown yellow yellow leaves angry apocalyptic approaching storm Australia black bright brilliant colourful contrast contrasting dark darkening disturbing dramatic dusk evening fiery flaming-gold foreboding frightening glory gold golden lighting molten-skies moody setting-sun shadows shining silhouette silhouettes storm storm clouds stormy sunset