golden spiral 4 icon png download

Golden spiral sketch. Eventually ended up with this image from the series: http://lazururh.deviantart.com/art/golden-spiral-3-659167553. This is a base step of that drawing. Although it might look fancy enough as is, for practical reasons it got way too complicated and probably worth a reconstructing from scratch for new "variants" and further improvements. Apart from that, the steps are alone worth sharing. This one is superimposed with the famous square construction of the Fibonacci spiral.