several hatchings such as cross lines and dots are used to represent the depth within this portrait. as seen in this image the darkness of an area is shown by doing a much more of a closer/tight hatchings.
Animal Paintings Made From Hundreds Of Colored Dots
Using toilet rolls and bubblle wrap in art with Alisa Burke. I have started using my cardboard rolls to roll on my texture and pattern. I cover the surface with all kinds of everyday things. Bubble wrap makes for great polka dots
It is the function of art to renew our perception. What we are familiar with we cease to see. The writer shakes up the familiar scene, and, as if by magic, we see a new meaning in it. - Anais Nin (Art - M.C. Escher)