abstract atmosphere background concept design element factory fill floor futuristic games background geometric graphic gray grey grunge industrial industry masculine mesh metal metallic New original plate plating render rivet scrapbooking shipyard steampunk steel style texture tough unique urban decay vector walkway architectural Asia beginnings brick-wall brickwork builders building concrete construction construction-work exterior external firm hill hillside Incomplete linear lines mortar people perspective perspectives rough secure security slope sloping standard strength strong surface surfaced surfaces textured textures track trees under-construction uneven variation varied walled walls weeds window-frames aged alert area backdrop blank bolt bolts brown copy fence grungy icon inform information isolated old paint painted placard plank planks plaque retro risk rust rusty sign space square triangle wall weathered white wood wooden yellow bar brick bricks handle bronze clock copper creation decay distressed engine engineering illustration image machine macro manhole objects power reflection riveted rivets round steampunk worn aluminum beautiful christmas chrome decoration elegant foil gleam hard luxury material modern sheet shining shiny silver tile wallpaper xmas alien art ball brass dark drive glassy orb panels satellite sphere structure technology unit work