You can see some more of the artist's fabulous work HERE and read about the materials and tools needed.
This is inside of the card I made. I didn't do anything to the outside.I can already see mistakes. I didn't make sure that the fold was centered and there are a few little bits I didn't cut out but this was only practice so I am quite pleased with it.
This is the side view. It is quite easy really but I do need some practice with my swivel knife.