background gray grey painted rough texture wall appearance color coloration colored colorful coloring colour coloured colourful colouring covering decorative design distinctive elements exterior external grained grains grainy panel pattern patterned patterns sand sandstone sandstone-sheets sandstone-tiles sandy tiles unusual chipped clear crystal cut edges edging embedded glassy light reflecting reflective rock sharp stone surface surfaced surfaces surfacing textured textures transparency transparent abstract angled angles blended blue bright colors colours course details geometric geometrical interconnected interwoven lines perspectives shape shaped shapes shawl spiral spiraling style tactile thick thin vibrant wallpaper weave woven architectural architecture building chinese Chinese-architecture curved curves dark fancy features garden green greenery height heritage high historic historical history old ornamental ornamentation points roof shrubs slope solid Somber sombre trees trimmed bush chimney contrast contrasting corrosion corrugated corrugated-iron corrugations decay deterioration grime iron metal metal-work neglect rural rural-decay rust rusting rusty shade shadows side-wall-chimney uneven variations wear weathering