I've made a small amount on my single product here at Rendo, but have made much, much more simply doing renders for hire. A number of people who frequent the websites where I post my work seek me out to do custom scenes. I probably have sold something over 100 renders in the past year. I've also done five covers for a horror fan magazine. I've also done some sub-contracting for other illustrators.

It's not a living by any means, but since I'm retired, it certainly makes me feel like I'm doing something worthwhile.