Building smooth gradients with a pen is a method that can incorporate a way of realism and depth to the drawings. Using Different Pen Dimensions: Experiment with various sizes of pen nibs for different dot sizes. Much larger dots can be used for rougher textures, even though finer dots https://claytongllll.jts-blog.com/36170299/the-definitive-guide-to-how-to-draw-with-ink-pens