Producing sleek gradients with a pen is a way which can insert a way of realism and depth towards your drawings. In hatching, the lines go in the same path within a selected region and don't cross above one another. The closer the lines are, the darker the shading. https://edgarkakwh.blogpostie.com/57331638/ink-drawing-for-beginners-things-to-know-before-you-buy