abstract appearance background branch broken cracked cracks grained grains gray grey old palm palm-branch palm-tree patterns rough stringy texture textured textures timber wood wood-grains wooden aged rural rustic shack wall wall-timbers wooden-shack angles board color colors colour colours cracking damage damaged decay deteriorating disused dry-wood lines maintenance split splitting surface surfaces surfacing upkeep weathered worn Dirt lined lumber plank planks cut formation hollow pests wallpaper knots knotting sawn trails