Drawing the strains closer jointly will give your sketch an impact of darker shading. Similarly, drawing the traces much aside will give it light-weight shading. Over are my favourite techniques for developing the illusion of gradations in worth applying significant distinction black ink on white paper. Take a look https://how-to-draw-with-ink-pens02468.blue-blogs.com/42465927/not-known-details-about-how-to-draw-with-ink-pens