Since the 1990s, Gonper has pursued a line of work that discusses issues related to the traditional concepts of painting, sculpture, and drawing. He was a resident artist at the Haute École d’Art Genève (Switzerland, 1999), participated in the Itaú Cultural Rumos Program (2002/2003), and featured in the Panorama da Arte Brasileira exhibition at MAM‑SP (1999, 2005). He has exhibited at the Instituto Tomie Ohtake, São Paulo, Daniel Reich Gallery (New York, USA), and at the fairs ARCO (Madrid, Spain) and Art Basel Miami, USA.