Ключевые слова: abstract, abstraction, background, cellulose, design, effect, fence, filing, frame, frost, frosty, frozen, grunge, hardwood, hoarfrost, horizontal, ice, line, material, natural, nature, old, panel, pattern, rime, rough, row, rural, scar, section, snow, snowflakes, splinters, stock, streak, strip, striped, surface, texture, textured, timber, tracery, tree, vein, vibrant, winter, wood, wooden, woodland,