abstract background clipart digital gold graphic metal metallic pattern texture textured clip art illustration branch branchesa foliage leaves snow sunshine tree white winter flint focus gravel norfolk pebbles stone stones sun sunlight crop cuisine edible food perennial potato potatoes tuber tuberous brown detail lines old surface timber wood wooden oxidation oxide oxidize rust rusted rusting rusty bricks broken cracks decay old wall ruin wall green leaf nature plant plants silver tile wallpaper border grunge paint