Ilaria,
Thanks for posting the link. There are very definite parallels between the BP contest and the annual contest here in Spain which is also very shortly going to post their winners. The painting you mentioned in your hyperlink is by the same artist in this painting:
http://www.fundaciondelasartes.org/pags/33D.html
(Scroll down to "Preseleccionados" to find his name: Alejandro Marco Montalbo)
This was from last year