Now I refine the mushrooms, introducing the modest bumps towards the caps, and mark the areas of moss and lichen over the tree bark. Historically drawing inks are already made from a number of all-natural pigments in the reddish-brown walnut ink (made out of the boiled skins of ripe https://artloveraustralia76542.theideasblog.com/34775680/5-simple-techniques-for-realistic-quill-pen-drawing