intricate black and white tree artwork

calligraphy monochrome drawing cartoon pattern artwork diagram sketch branch flower circle plant line font tree tree drawing black white art nature fine stylized intricate spiral swirls branches roots artistic ink detailed graphic monochrome fantasy surreal minimalist poster print digital background cloud calm tranquility meditation contemplation spirituality decor wallpaper botanical textured vintage gothic whimsical modern grayscale line abstract organic whimsical design poster nature cloud design