Peter Callesen has created some of the smart, most delicate works I have ever seen. Not only must each cut be made with exact precision, but there is also a concept behind each piece.
On his larger scale pieces, you wonder - is that really made of paper?!
Some of his pieces also show the pop-up with the paper it was cut from, adding to the amazing effect. He turns regular white paper into something that can bring into another world, and with incredible emotion.
You can see more of his work on his site: http://www.petercallesen.com