abstract architectural backdrop background barrier basic brick brick-wall bricks brickwork cement colored coloring colors coloured colouring colours constructed exterior external firm linear lines mortar perspective perspectives rough secure security solid standard strength strong style surface surfaced surfaces texture textured textures traditional-brick-wall variation varied various wall walled wallpaper well-built windows corner rectangular smooth clean angles curved curving aged aldabra-giant-tortoise aldabrachelys-gigantea appearance armor armored armorment armour armoured armourment brown carapace contours cover giant-tortoise grooves hard hide horny-plates layers leathery lined longevity old outlines pointed points protection protective reptile reptilian shell shelter size skin tortoise tough zoo cement-mixer-truck concrete concrete-pad concrete-pour concrete-work concreting construction fill filling flat flatten flattening form forming foundation foundational gray grey level leveled leveling levelled levelling mix mixed mixer pour poured pouring preparation prepared preparing smoothing solidify spread spreading sunlight tools wet work working appearances arched arches architectural-elements architecture Australia Australian building clock clock-face clock-tower Colonial convicts decorative distinctive elements height high historic historic-building historical history iconic labor labour light ornamental ornamentation Perth stones stonework time tower tower-clock town-hall Western-Australia