This piece is based upon overlapping two “visual octaves”, where ROYGBIV is expressed as the sequence 24, 12, 8, 6, 4.8, 4, 3.4 and also as the sequence 12, 6, 4, 3, 2.4, 2, 1.68
I mix my own formula of paint, and in order to achieve the raised dimensional dots i use a special two-part polymer thickener.