abstract aged background black blackened burned burnt burnt-out bush bushland charred colors colours cracked cracks cut damage damaged dead-wood deteriorating grained grains gray green grey lines new-growth new-life old patterns plants rough rustic sawn surface surfaces surfacing texture textured textures timber trails vegetation weathered wildflower-plants wood wood-grains wooden worn brown grain plank slat warm ELEVATORS renewal urban agriculture food harvest nature nutrition plant seed wheat closeup corn crops field summer macro farm flour kernel veneer board contrast joint natural