I would suggest you simply describe how the prints are made and not worry too much about buzz-words; which might come across as rather marketing speak.
Simply describe why your method of making custom prints is so cool. If you ain't a riter tell it to a friend and write it down and edit it from there. Don't overthink it and forget the fancy verbige.
In my experience, buyers don't care how it was made. Either they have to have it or they don't. Those that ask "what kind of prints are these?", left their wallet at home.