blue cloud coast coastline colour heavy rock sandstone sandstones shadow shore sky stone appearance color coloration colored colorful coloring coloured colourful colouring covering decorative design distinctive elements exterior external grained grains grainy panel pattern patterned patterns rough sand sandstone-sheets sandstone-tiles sandy tiles unusual boarded derelict empty frame glass lintel paint peeling rundown sash security window wooden background cliff Devon England face layer texture desert formation jordan nature wadi rum hill mountain national park holiday national park