3D abstract background bond chain chainlink concept connection creation design detail fence fill garden graphic gray grey grid illustration industrial industry isolated line link metallic pattern power prison rust safety secure security steel strength strong symbol system texture together white art brass clock clockwork cogs cooperation dark drive engine engineering frame futuristic gear grunge image machine machinery macro network original render steampunk structure style teamwork technology teeth unique vector wheel work abandoned blocks bricks brown building construction damaged decay dirty floor gloomy grout masculine mildew New pavers plaster scrapbooking tiles urban wall gothic halloween moss shadows atmosphere factory hi res metal plate plating rivet second life shipyard texture squares tough urban decay walkway colour fantasy fun grime mortar pink red stains aqua blue blank block clean color decoration geometric light rough smoky architecture backdrop cobblestones yellow bronze copper distressed manhole objects reflection riveted rivets round worn