QuoteAs a non-illustrator I'm just curious are those illustrations with various variations produced by automated software in some way?
I don't know of any automated software option but if you have some experience you can organize your workflow so that you can easily produce variations (e.g. have the color & shading in separate layers so that you have variations by just changing the color). Again in my experience if the theme sells and it is well done variations just slightly enhance or refresh sales if it doesn't you just waste time you could put in a new illustration. The best use of variations is when a theme is proven its sale-ability.

