Husband showed me this American artist and I was speechless near his art! How cool is that?
This technique is called Stereographic Drawing. I tried and tried to do a little research about it, but couldn't find an accurate explanation of how Dain Fagerholm actually does it. Apparently it's something similar to the Moving Cinemaph Pictures created by Jamie Beck & Kevin Burg.
Some things are better when they are just magical, so I'll stop trying to find the technique behind those and enjoy them!