Rubens Ice Sculpture

Forty ice sculptors have come together in Antwerp to celebrate the famous Flemish artist, and celebrated son of Belgium.. Peter Paul Rubens. I tried to find some more images of the exhibition online as I saw it on television and was impressed, but couldn't find much.
I don't think I could commit so much time and energy into making a work of art that returns to water in a few days. I'm more into the permanence of oils, wood, or stone. How does an ice sculptor have a retrospective after a life of work?
"All artists are vain, they long to be recognized and to leave something to posterity." - Francis Bacon
Antwerp puts Rubens world on ice
"When I first picked up an ice chisel, it was very sharp and I pushed it and it made this 'crisp' sound, and the feel of it was so delicious, and I still have that pleasure" Steve Leister.
bbc