That is a really neat coffee table and not at all what I expected from the title.
I don't want to get back into the negative copyright topic but I will because I have good news. I googled the topic and found a thread on fine woodworking where an intellectual property atourney says that you can copyright a picture of your project but that does not prevent somebody from using the picture of your project to make a copy. To prevent the copy, you would have to patent the project which is much more difficult and costly. So it is legally OK to make projects from pictures. His comments were to a group doing it commercially but I still would not do that without specific legal advice but for our own use or a gift, I am pretty sure we are OK.