He realized among other things works with the portraits from the Nobelprice winner Nagib Machfus and the surrealistic Swiss painter Meret Oppenheim. The leading subject of modern oriental painting reached Haenni after a trip along the Nile in 1990. Many works were created after that like West-östlicher Divan from Goethe, the series of Monde Arabe and Lawrence of Arabia – new paintings about an old film.