angles appearance backdrop background backgrounds barrier blocks colors colours constructed contrast contrasts cracks discoloration fitted foundation foundational growth height high large limestone linear lines mortar moss old perspective perspectives plants retaining retaining-wall secure security solid stone stones stonework strength strong surface surfaces texture textures variations variety wall walled well-built abstract bolders boulders cemented coated concrete cover covered erosion-prevention hill random randomly-coursed Rendered retaining-rocks rock rocks rocky rough rugged slope sloping stone-walled uneven AC acdc dam DC ecological electric electrical embankment dam flood barrier green power local river barrier plant power power plant retaining dam station water water power appearances artificial artificial-lawn brickwork corner curved curves drive fence fencing flowers garden home house lavender lawn neat path paving pillars shaped shapes shrubs street suburban tidy architectural architecture basic brick brick-wall bricks color colour crack cracked damage damaged danger deterioration exterior external lean leaning split-levels splitting standard strained textured beginning creeper green greenery growing mound new-growth potential small sprouting vegetation brown coloring colouring heritage historic local-stone pattern patterns picturesque rural shape significant stucco traditional