Very intresting, and different! I really have mixed emotions when viewing the print. I dont think the Zone Plate is quite my cup of tea, but it certainly has lots of potential.
I appreciate the opportunity to see and read about the process, I thank you for posting the link.
This is probably the fifth time I've come back to look at this photograph. I really like it. The way it's printed, it almost looks like a bromoil print. The link posted was a little too technical for me to be fun, but if you can get results like this - go for it! A portrait would be really interesting.