abstract background Dirt dirty metal metallic panel panels rust rusty sand sanded spoil spoiled steel texture deteriorating deterioration discoloration empty exposed external frame iron memorial monument neglected old plate shadow shadows sunlight textures wear weathered worn autumn autumnal brown colors dry fall leaf leafs leaves orange pattern pavement red degrade drain drainpipe grunge pipe rain rusted rusting threads urban abstracts backgrounds brush depressing desktop drab fill green grungy messy shapes wallpaper arrows geometry material patterns regular shiny structure structures surface wet aged collage copyspace layers leather page paper rough rustic scrapbook spatter splat string tag tags tattered tied torn