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 bark forest grain groove grooves natural nature tree woods brown plank slat warm bark texture gray surface pattern plant wood texture