aeroplane aircraft airplane angled angles atmosphere blue bright changing cloud clouds color colorful colour colourful contrast contrasting dark dark-clouds darkening darkness distant disturbing dramatic dusk evening foreboding formations gray grey layers levels light lighting moody nature plane rays silhouettes skies sky sloping sunlight textures threatening trees weather white wild aerobridges air-industry airbridges airline airlines airport airport-tarmac airport-terminal appearance cockpit crew curved curves jet-bridge jets jetways ladders lights luggage luggage trolley mobile moveable-bridges movement parked stairs sunshine tarmac terminal terminal-gates transport transportation travel traveling travelling trolleys vehicles luggage-trolley rain raining service servicing tail wet above abstract below between cloud-formations colored colors coloured colours conditions flight high in-between multi-level patterns shadows shapes up-above variations variety various various-cloud-formations weather-indicators