abstract angle angles appearance architectural architecture background basic brick brick-wall bricks color colored colors colour coloured colours exterior external perspective perspectives rough smooth solid standard strength surface surfaces texture textured textures uneven variation varied various wall wallpaper angled art artwork atmosphere blue cooling dark downpour drenching heavy-rain light paint painted painting pelting-down pouring-down pouring-rain rain raining reflecting rivulets running-down stormy streaming streams water weather wet window aim aimed aiming anti-aircraft-gun Australian-Defence-Force barrel coast coastal-defence death defence defensive destruction destructive gun hilltop military mounted mounted-gun placed placement protection protective shrubbery upward vegetation weapon weaponry World-War-2 wwii colorful colourful concrete Designs detailed detailing distinctive footpath grooves ground level path pattern patterned patterns pavement pavers paving paving-bricks shaped shapes stones stonework