abstract city color colors decay iron rust rusty steel bar teexture textures urban urban decay backdrop background blue brown detail gray metal ol silver texture big cables chains construction heavy hook large steel sundconst wire wires Dirt dirty metallic panel panels sand sanded spoil spoiled aged collage grunge grungy paper papier series tattered tones torn variation variations worn 50's. HDR age car cars Disintegration Forrest Nyberg old passing senior time used wood