Actually if you read the article that goes with the pictures they tell you that as soon as the artist is done they remove all of the powder so that it will never get filled back in and be like that forever.
?Once finished, the piece is then preserved to stand the test of time by removing the powder from the Etch A Sketch.'
This is phail...
He could have used his time playing CS:S... he would definitely be on the CAL team if he worked that hard on it. Etching is such a waste of time...