abstract appearance background canyon colored coloring colors coloured colouring colours contours contrast contrasts cracks fissures flaws gorge layered layers levels light lines natural ravine rock rock-face rockface rocks rocky rough rugged shade shadows shape shapes small-canyon steep stone stones strata stratum sunlight sunny sunshine surfaces texture textured textures walls Australia bush bushland cool creek dark fall flow flowing foliage grasses leaves lighting moving peace peaceful perspective perspectives placid reflected reflection reflections refreshing restful ripples rippling serenity shallow small-stream stream tranquil tranquillity vegetation water water’s-edge white white-water river autumn blue pond sky atumn bright color colour colourful grass nature shine waterfall big green reptile small snake coastline Gozo Malta sea