Ключевые слова: abstract, backdrop, background, barrier, bind, blur, border, building, cage, chain, construction, defocused, design, element, enclose, fence, field, focused, frame, freedom, grass, grate, green, green background, grid, grille, hole, industrial, iron, link, material, mesh, metal, nature, net, network, old, outdoor, pattern, perspective, protection, rust, safety, security, shape, square, steel, texture, wall, wire,