Free portrait photography cheat sheet: guide to cropping portraits - Cropping in an awkward position on your subject can end up ruining a perfectly good shot. ‘Yes’ areas are marked in green, while ‘bad’ locations are marked in red.
"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.