The book called art theory is written in the language of geometry.
To seek balance and harmony by repeatedly redrawing the original sketch is to embellish it. The decoration has symmetry and regularity that are not found in paintings. Symmetry is not present in the picture, but it is partially hidden. Paintings achieve harmony and balance using the same techniques as decoration. The circle- cross model can show these two things at the same time. The refined lines tend to be connected arcs. The arc is a part of a circle. A unit called circle-cross unit can be made of a circle and its vertical and horizontal diameters. The limited number of circles creates a sense of harmony. Vertical and horizontal diameters adjust the balance. Artistic effects should be explained not with words but with the structure of straight lines and circles. Last time I used Cezanne's most structured painting "Five bathers". This time I can redraw the new model replacing circles for units. Cezanne [Five bathers] Bazel Museum light blue circle-cross unit model re...