Draw structures in shadows with thicker strains, and structures in light with thinner lines. Try out it your self: draw a circle, then go more than the bottom of it with a heavier line and promptly it gains quantity and appears like a ball. Working with pen and ink https://howtodrawwithinkpens59259.mpeblog.com/65199412/ink-pen-drawing-techniques-can-be-fun-for-anyone