WorkbookCathedralDigitalDrawingLandscapeLeporelloParksPortraitSkiesStonesTreesWatersWorkbook Walk in the Park2010 drawing 30 x 21 cm Hofgarten, Düsseldorf2011 drawing 30 x 21 cm Grace2009 Workbook Avebury2011 Florence 22010 Madrid2009 Workbook Avebury 22011 Silence of the Trees2011 drawing 30 x 21 cm Si Jin2009 A Walking DrawingHofgarten Düsseldorf. 2009 PradoMadrid 2009 Figure Drawings2009 Florence2010 The Holy Trinity 2014 pencil 42 x 30 cmThe Holy Trinity 2014 pencil 42 x 30 cm HofgartenNovember 2011 Van Gogh, Flowering Plum OrchardWhose History, 2015 PradoMuseum 2009 Mnajdra Temple, Malta2010 conté 26 x 36 cm Hofgarten20.09.11 Rhine2010 SchattenbilderNovember 2011 Hokusai, Whose History2015 pencil KunstmuseumVienna 2012 Museum of Fine ArtBoston 2011 Figure Drawing2009