This is worth checking out - http://craigalanart.com/index.php
The last time I saw someone's work along these lines was L. S. Lowry

Thank you so much RJKD for sharing it. I like it.

Would be cool to have a program that can control swarms (or in this case people outlines) to create art. I remember their was a video rendering of people being thrown about (as I recall it) and they used some algorithm to create the people.