My idea was to use color to identify each circle, cool colors for the circle shapes, warms for the background. I combined medium and fine point sharpie to draw all the lines.
Then I layered more lines to define each circle, and then used thin layers of intense pencil to create the overlapping weave of background color, and added another layer of lines to define the over lapping areas. Then a little more color.
This does not translate well on the screen, but the image on 11x14 drawing paper creates a strong impression of depth.