 They were stimulated by the 'Figurenfeld' land art ensemble of Alois Wünsche-Mitterecker.The press called “Erfahren, Erinnern” an “internationally notable exhibition.”

Again in Germany, Piron took part in the “Hortus – Wander Wunderkammer” exhibition in 2008.De Zuid-Duitse pers schreef over deze tentoonstelling in Eichstätt.