aged attached background boards brown cracked cracks ends fastened fixed gaps grained grains gray grey lumber nailed old patterns planks rectangular rough rural rustic shack surface surfaces texture textured textures timber wall wall-timbers weathered wood wood-grains wooden wooden-shack wooden-wall abstract appearance Australian bare bark colors colours dry edge edges eucalypt eucalypts grooves layers lines mottled peeling self-shedding shadows shapes shedding smooth sunlight tree tree trunk trunk uneven variations wallpaper angles block chopping colored coloring coloured colouring crack cut cuts drying exposed firewood grooved length lengths log lopped orange perspectives piece sawn tree-block beam beams bolt bolted color colour connected damage damaged deteriorating joined maintenance surfacing woodwork worn