abstract appearance architectural background colors colours concrete decorative Designs details distinct distinctive edged edges embedded exterior external gray grey heavy interconnected interlinked light linear lined mosaic patterned pebbles protective rough secure shapes Sizes solid stones strength strong surface surfaced surfaces texture textured textures thick uneven varied various wall wallpaper air airy art artwork backdrop blob blur border brush colour copy copyspace create creative daub daubing design digital edge effect element frame graphic grunge grungy illustration image mix modern mottle paint pastel render shade sky soft softness space stroke vector water watercolor watercolour blue boulder clear drystone grass lichen moss rock stone fancy lines patterns perspectives rectangular shaped slabs smooth stonework style thin tiled tiles variation barrier constructed fitted fitting flat gaps security