Some striking nature-inspired generative visualizations can be found over at Imitate and informate. From the site:

This is an experimental visualization project. We are inspired by nature or other real phenomena and try to transform formal aspects of it into data visualization systems.

Imitate and Informate is a project by Cedric Kiefer and Christopher Warnow. It emerged from a course called “Reality in Virtuality” at Potsdam University of Applied Sciences, Prof. Danijela Djokic.