abstract appearance background brown colored coloring colors coloured colouring colours conglomerate contours contrast contrasts cracks fissures flaws grit gritty layered layers levels light lines mica natural rock rock-face rockface rocky rough rugged shade shadows shape shapes silicate stone strata stratum sunlight sunny sunshine surfaces texture textured textures veins wallpaper shaped surface angles building capping cleaning cover covered covering danger dangers ear protection edge exterior external height high high-pressure improvement maintenance pressure pressure-cleaning renovating renovation repairs restoration restoring risks risky roof roof-area roofing rooftop safety skies sky spray tiles tiling tools tough water wet work workman artistic artwork color coloration colour copper copper-work copperwork coppery crafted craftsmanship decoration decorative designed Designs distinctive embossed embossing impressions interconnected interlinked metallic mosaic panel paneling panelling patterns presentation raised rectangles rectangular style thick thin vibrant aerobridges aeroplane air-industry airbridges aircraft airline airlines airplane airport airport-tarmac airport-terminal cockpit crew curved curves jet-bridge jets jetways ladders lights luggage luggage trolley mobile moveable-bridges movement parked plane stairs tarmac terminal terminal-gates transport transportation travel traveling travelling trolleys vehicles