The moment your straight lines are fine, you could move ahead to the subsequent technique for shading your pen and ink drawing i.e. the crow quill method. Listed here I've briefly summarised a handful of hatching techniques for you. You will also discover sample visuals on the techniques in https://inkdrawingforbeginners44321.theisblog.com/35244731/the-ultimate-guide-to-ink-pen-drawing-techniques