I invented a rule to abstract from the subject . The rule limits any drawing to seven lines and two colours.
I consciously cheated on my own rule in these two drawings at Trerice, an Elizabethan house in Cornwall. In the first, I followed the letter of the rule but not its spirit, drawing continuously to create more complex shapes and textures with a single so-called line. Ironically, I wrote the rule above in blue ink then spread this with water to provide a third colour. In the second, I used black crayon in addition to the permitted yellow and green, deciding black is not a colour.