Hatching consists of building up parallel marks of various density. Experiment with horizontal, vertical and diagonal hatching or a mixture of all 3. The best video For brand new artists thinking exactly where to start with pen and ink! Steve Mitchell of ‘The Head of Watercolour’ discusses what pen https://inkpendrawingtechniques44322.ziblogs.com/35145630/indicators-on-ink-drawing-for-beginners-you-should-know