angles appearance architectural architecture blue bright building-construction buildings colored coloring colors coloured colouring colours construction construction-work cranes danger Designs detailed distinctive elements exterior external figures height high light linear modern perspectives safety safety-mesh security shaded shape shapes Singapore sky style surface surfaces tall textures unusual work workers working workmen abstract background conglomerate contours contrast contrasts cracks fissures flaws grit gritty layered layers levels lines natural red reddish-brown rock rock-face rockface rocky rough rugged shade shadows shaped stone strata stratum sunlight sunny sunshine texture textured veins wallpaper african arid Cacti cactus clumps clusters display edge edges flora garden-plants green greenery irregular leaves ornamental patch perennials plants pointed protection ribbed ribbing ribs section sharp short-spikes small-spines spikes spines spiny succulents variations variety age aged armor armored armorment armour armoured armourment astrochelys-radiata Camouflage carapace critically-endangered giant-tortoise herbivore hide large-tortoise leathery longevity Madagascar mixed-light old patchy plod plodding protective radiated-tortoise reptile reptilian scaly shell size skin slow strength strong tortoise tough zoo amazing-formation ancient Australian bark bedrock bedrock-surface branches color coloration colour concave-upward contrasting curved curves dark disaggregated-bedrock erosion flared-slope foliage granite-inselberg granite-outcrop Katter-Kich natural-landscape recognisable-landform streaks streaky symmetry tree unique vegetation weathering Western-Australia afloat cascading cool cooling edging floating flow grove lily-pad multi-level multiple-levels peace peaceful pond public reflecting reflections ripples rippling rocks running steps still stones stonework stream streaming tranquil trees water water-lilies water-plants waterfall waterfalls wet