shades of grey pop-art with simple tree silhouette

design art pattern sketch drawing line branch calligraphy variation diversity shades beige simple tree silhouette repeating nature plant shape pop sign symbol environment clean abstract organic yellow sky modern bright beauty bonsai fractal defocussed orange colour light natural phenomenon travel destinations landscape scenery outdoors dawn black backgrounds back lit multi coloured creativity romantic scenics elegance curve bent trunk bare pop-art grey white monochrome