sketch, of nature, mushrooms, snail on the background of grass, leaves and rain, for coloring book.

cartoon drawing line sketch illustration font monochrome artwork pattern diagram circle branch symmetry text face nature mushrooms snail background grass stones leaves rain children coloring book anti stress mushroom design plant art forest autumn print season black vector vintage cute drawn element collection natural set decoration floral organic watercolor botanical fly agaric outline red colorful animal butterfly retro hand style seamless decorative raw garden beautiful summer for book