abstract appearance background bare bark cambodian close-up colors colours cracked dry edge edges lines mottled pitted rough shapes smooth sunlight surface surfaces texture textured textures tree tree-trunk trunk uneven variations wallpaper wood blue color colorized concrete decay design grunge grungy line paint painted scratch scratched scratches urban wall aged board boards cracks decking flooring grained grains gray grey knots knotting lumber old outdoors outside patterns pier plank planking planks platform rustic surfaced surfacing timber viewing-platform weathered wood-grains wooden branches building deciduous height heritage historic leafless limestone roof secure security solid strength strong walls windows aging deteriorating fading grooves maintenance rough texture slats small planks unkempt upkeep weathered boards wooden boards woodwork worn angles backdrop backgrounds barrier blue-metal chipped chips construction embedded granite gravel grooved pebbles perspective perspectives ribbed ridges shaped variety walled well-built colour damage damaged disused