Now I refine the mushrooms, incorporating the small bumps to the caps, and mark the areas of moss and lichen within the tree bark. • Thick drawing paper with an excellent surface – please use almost any paper you like. The paper structure of this artwork is near A4. https://quill-pen-art-tutorial65431.bcbloggers.com/33433998/not-known-details-about-realistic-quill-pen-drawing