abstract aging background beige brown concept creation decay design fence fill graphic grunge illustration image industrial metal mottled old oxidisation oxidised paint peeling ruin rust rusted scrapbooking style texture ugly unique urban vector weathered aluminum cool cooling geometric grill radiator rectangles row rows rusty shape slit square textures vent angle angles appearance barbed-wire barbs barricade barrier caution cautionary-tape danger deteriorating double fencing gray grey light plastic plastic-tape protect protection protective razor-wire restraint rusting secure security security-fence sharp silvery spirals strands tape twists warning wire aged collage grungy paper papier series tattered tones torn variation variations worn green purple blue violet