Head 01, 2011, 35x20x20 cm Head 02, 2011, 35x20x20 cm Head 03, 2011, 35x20x20 cm Head 04, 2012, 35x20x20 cm Head 05, 2012, 35x20x20 cm Head 06, 2012, 35x20x20 cm Head 07, 2013, 35x20x20 cm Head 08, 2013, 35x20x20 cm Intelligenz, 2013 Potential, 2013, 10x7x8 cm