City = Metropolis, Country = Province?

In 2009 the district of Aachen together with the Arts and Cultural Centre (KuK) and the Zeitungsverlag Aachen advertised an International Cartoon Competition with the theme "City = Metropolis, Country = Province?"
153 artists from 33 different countries participated, with a total of 459 works. Each artist could submit up to five works what I did, of course. Unfortunately I have not won, but at least a cartoon of mine was exposed at the exhibition and made it into the catalog, too. The cartoons were auctioned at the end of the exhibition. I would like to know whether and, if so, for how much my cartoon was sold, but I have only received a copy of the catalog, and otherwise have not heard from the event anymore.