blue cauliflower clouds cauliflower-like cloud clouds colored colors coloured colours compacted conditions cumulonimbus edges formations gray grey heavy light shapes skies sky strong sun textures thick variations various cloud formations weather white ancient Belgium castle europe grass green landmark landscape place reflection water wijnendale atmosphere atmospheric black bright brilliant color colorful colour colourful contrast contrasting dark darkening dramatic dusk evening fiery flaming glory gold golden lighting mood moody palm-tree palms roofing roofs rooves setting-sun shadows shining silhouette silhouettes spreading sunset trees