Ключевые слова: abstract, age, aging, background, bark, brown, circle, circular, closeup, concentric, crack, cracked, cross, cut, ecology, environment, forest, grunge, industry, log, material, natural, nature, oak, old, pattern, pine, ring, rough, round, section, shape, slice, structure, stump, surface, texture, textured, timber, tree, tree rings, trunk, white, wood, wood background, wooden, years,