Torso of male model, leaning, drawn using Bic Biros

This portrait of Jonathan was drawn across seven laters: one yellow, two orange, two cyan, one purple, and one black for the contrasts. Each was drawn using a Bic Biro with a broad 1.6mm ball. The pattern used is based on a series of woven squares rotated through 45 degrees.

Detail of the pattern used to draw the main image portrait on this page
 

Materials: A1 paper; Bic Biros
Equipment used: Pens; paper; A1 plotter; Raspberry Pi 5; LibreOffice Calc for data management; iPad to draw underlying patterns
Size: A1