angles appearance background barrier brown coloring colors colouring colours constructed craftsmanship heritage historic local-stone old pattern patterns perspective perspectives picturesque random randomly-coursed rock rocks rough rural secure security shape shapes significant solid stone stone-walled stones stonework strength strong stucco surface surfaces texture textures traditional uneven variations variety wall well-built fitted fitting large patchwork rugged shade shadows shaped sharp sunlight sunshine cemented concrete corner limestone retaining-wall mortar architecture building windows