These terms describe art produced using only a computer. As I explained above, I use the computer as one of my art making tools. It is like a pencil, or a brush. Looking at my art it is difficult to tell that I used a computer in the process, just like you may not be able to tell what part of the page was made using a colored pencil or watercolor paint. The editors that I work with have been encouraging me to explore new computer or non-computer ideas in my art.
New ideas keep the books interesting and fresh.
There has been a small amount of friction from other illustrators. In my opinion, it is collage a very well established artistic technique. I think so. I spent quite a bit of time learning how to use Photoshop. He helped me become aware of some of the more subtle techniques that were available in the software.