background cracked cracks door fence gate knot ocean old panel salford sea Stump texture textures timber tree wallpaper weathered wood abstract composition nature surface vegetables backround brown nail plank planks tecture wall wooden aged angles appearance boards color colors colour colours damage damaged deteriorating disused fading gray grey lines maintenance rough rustic surfaces surfacing textured upkeep wood-grains woodwork worn cut formation grained grains hollow patterns pests black burned decay dry grunge natural art artwork backgrounds dark dead-wood edge edges gnarled grain grooves hard-wood layers lumber painted painting patterned perspectives ridges shadows shape shaped shapes surfaced tree-trunk trunk twisted uneven variations varieties wood-grain wrinkled wrinkles wrinkly ancient music strings violin board red stripes