Towards PersepctiveMethod 'C' draws lines in gridded sets with respect to a focal point. Series 003 layers three sets. In two sets the lines are angled towards the focal point. The third set is made of vertical lines. In run 001, a set is drawn with a blue pen. The second set, closely aligned with the first set is drawn with a yellow pen. The third (vertical) set is drawn with a red pen.