abstract background desert desertification dry ecological ecologist ecology land movement nature parched planet save shape shapes terrain texture UP very backdrop canvas colors colours grunge grungy paint painting paper papier pastel pastels rough series spatter textures variation variations blue blur calm cloud dusk electric blue horizon landscape liquid natural ripple sky summer water wave white art blot blotch blotches clip art clipart graffiti graphic illustration ink red splats splatter stain aged card cost isolated label price retro rustic simple stained tag vintage border color colorful colour fabric frame spatters clean coast coastal fresh green palette pattern red sea salt sea surface swim wet yellow