1916 Paul Klee 'In the Beginning'. Paul Klee: 'Everything vanishes around me, and works are born as if out of the void. Ripe, graphic fruits fall off. My hand has become the obedient instrument of a remote will'.
"Hokusai Meets Fibonacci Golden Ratio" by Ars Brevis This is an example of the golden ratio. The wave creates the curved effect which is pleasing to the eye. It has a rhythm to it, like you are counting up to the curve of the wave.