background barrier brown cemented coloring colors colouring colours concrete constructed heritage historic local-stone old pattern patterns perspective perspectives picturesque random randomly-coursed retaining-wall 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 accommodation angles apartment-blocks apartments appearances architecture box-like boxed building complex contrasting dark Designs detailed distinctive elements exterior external flats glass height high high-rise highrise light linear lines metal modern modernistic multi-storey multi-story plain red shield shielded shielding squared straight structured structures style supports tall towering units views windows arched arches architectural buildings city colorful colourful contemporary contrast decorated façade flowers gardens greenery grime heights levels low quality Sizes styles tower walls abstract backdrop bolders boulders coated cover covered erosion-prevention fitted hill mortar Rendered retaining-rocks rocky rugged slope sloping walled