Hatching for Thickness: By hatching (drawing carefully spaced parallel traces) in sure regions, you'll be able to generate the illusion of a thicker line and include texture towards your drawing. Hatching is successful for developing textures for instance Wooden grain, cloth folds, as well as pores and skin textures. https://inkpendrawingtechniques22109.weblogco.com/36213967/the-definitive-guide-to-ink-pen-drawing-techniques