In 1968, Oppenheim embarked on a series of travels that profoundly influenced his art, with exhibitions in Mexico City, London, and Germany. In Aachen, a passionate industrialist offered him a studio, facilitating the creation and exhibition of his works in galleries such as Siebel and Glaüb.
In 1972, his meeting with Franco Bettazzi in Florence led him to paint exclusively for him for nine months. Returning to France in 1973, he exhibited at the Galerie Beauvois in Paris and, in 1974, produced 43 drawings in homage to Léo Ferré, purchased by a Texan collector who then commissioned a box set of lithographs entitledObsession.
In 1975, he met Bob Dylan, who asked him to illustrate the album coverBlood on the TracksBetween 1976 and 1981, he exhibited regularly in France and Germany. From 1981 to 1985, he devoted himself to monumental projects, including frescoes and painted walls, notably on the facade of the Toursky Theatre in Marseille.
In the 1990s, back in the Marseille region, he continued to paint in Corsica and exhibited in Marseille and Paris. After a period of self-reflection, he remarried and settled in southern Spain, pursuing his artistic career with energy and inspiration.
