abstract backdrop background blue color colour concept contrast glass glassy glossy graphic green lines metallic modern multicolored multicoloured orange pink purple rainbow refraction render ripples shiney texture through a glass darkly vector waves wavy wavy lines window yellow aging corrugated creation decay design fence fill gray grey grunge illustration image industrial metal mottled old oxidisation oxidised paint peeling red ruin rust rusted scrapbooking style ugly unique urban weathered angles building building-construction building-site building-work buildings construction construction-site construction-work crane danger external height heights high lifts metal-work pipes protected protection railing rails safety scaffolding security steel-scaffolding tall work work-safe workmen appearance architectural architecture brown colors colours contrasting corrosion corrugations dark deterioration elements perspectives rough rusty surface surfaces textures uneven variations wall wearing weathering bridge city close colorful culture custom emotion forever friendship hang happiness heart human iron link lock love love lock loyalty padlock pair romance romantic sharing steel symbol together tradition two unity valentine youth catch catching clawed claws colored coloured crab-nets crabbing crabs creatures crustaceans decapods drop-nets exoskeleton fishing floats food mesh metal-rings nets nylon rings seafood arched artistic Australian balconies balcony bricks brickwork chimneys craftsmanship decorated decorative detailed dirty exterior historic historical ornamentation prestige prestigious protective roof roofing skilled slate walls weather vane windows additions alterations angled development patterned patterns reinforced reinforcing safe secure mixed roofs rooftops rooves Sentose shape shaped shapes Singapore structure structures styles surfaced textured