bark botanical crack crevice forest formation grain lumber madera natural nature paint peel peeling plant texture textures tree wood wood grain city decay gloomy grunge grungy old paint old wood pattern red red texture urban urban decay board Ladybird pier weathered wood wood surface aged green old woods abstract art artwork backgrounds colors colours cracked cracks dark dead-wood edge edges gnarled grooves hard-wood layers lines painted painting patterned patterns perspectives ridges rough shadows shape shaped shapes surface surfaced surfaces textured timber tree-trunk trunk twisted uneven variations varieties wood-grain wrinkled wrinkles wrinkly