This is super cute. Loving how the little diagrams change as the sliders are moved.<p>One thing that might really get people to purchase a drawing is the ability to change line colours. Imagine all the colourful patterns! Have you plans to add this?
I have been working on something similar for plotter drawings <a href="http://xn--5ca.cc/jack-of-diamonds/#Faces" rel="nofollow">http://xn--5ca.cc/jack-of-diamonds/#Faces</a>
Pleasantly reminiscent the cover artwork of "Unknown Pleasures" (Pulsar!)<p>Perhaps someone in the near future will make a similar art cover using graphs of exoplanet transits.