abstract appearance background brown colored coloring colors coloured colouring colours conglomerate contours contrast contrasts cracks fissures flaws grit gritty layered layers levels light lines natural rock rock-face rockface rocky rough rugged shade shadows shape shaped shapes stone strata stratum sunlight sunny sunshine surface surfaces texture textured textures veins wallpaper 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 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 accommodation architecture bridge business-complexes city color colour cultural culture decorations decorative dome domed flora flowers foliage green greenery highrise modern New peaceful perspectives pink plants shrubbery shrubs Singapore skyline style towering towers tropical variation variety vegetation architectural-elements dark design features frontage garden grass heritage historic lawn masonry old ornamentation pillars ridges segments shadow significant solid stately stonework strength strong support symmetry trees wall walls windows arrangements bush bush-park bushland bushland-gardens colorful colourful eucalypts evergreens exotics floral gardens native-plants natives open ornamental park parkland paths pedestrians people public tourists tracks tranquil tulips visitors