I like to use different pens for various things. I use thick markers for giant shadows simply because they’re major and chunky and cover a great deal of paper quickly. I like Sharpies for more compact shadows and thick continual traces. This helps make them look extended and fuller. https://how-to-draw-with-ink-pens88764.topbloghub.com/43666047/5-simple-statements-about-ink-drawing-for-beginners-explained