In 1981, Gaëtan focused on drawing, which began to deal in a continuous way, deepening the variations on the same theme, which was his face, as a pretext of work.
He also participated in the XXI Biennial of Paris (1980), in the exhibition "After the Modernism", in the National Society of Fine Arts, in Lisbon (1983), in "Triptych", in the Museum van het Hedendaagse Kunst in Gent (1991) , in Belgium, in Drawing Towards a Distant Shore: Selections from Portugal, at The Drawing Center in New York (1994). He exhibited at the National Museum of Contemporary Art – Museu do Chiado in Lisbon in 2004, after the anthology at Gulbenkian in 1996.
"He is one of the Portuguese artists who most used drawing, practicing it almost exclusively", reads the presentation of his work on the site of the Serralves Museum. "Betting on expelling from his practice any tics of academicism, he soon decided that, being right handed, he would only draw with his left hand. It is mainly known through the obsessive practice of self-portraiture," which has been applied since 1981.
"This recurrence to his face," as a source material, has already been described as "an art of escape, composed of variations on the same theme," recalls Serralves about the artist.
"The drawings in which Gaëtan portrays himself, and where small changes more or less perceptible of his face and his body … have served to elect the time and the memory like the real subjects of his work", describes the museum of contemporary art in Porto.
The Calouste Gulbenkian Foundation makes online the reproduction of "Agnus Dei (brown eyes, open shirt)", one of the works of Gaëtan, from its collection, as well as the series "Arte da Fuga".
In 1996, with the anthology "Land of Nobody", the Gulbenkian published the namesake catalog, with texts by artists and curators Jorge Molder, who directed the Center for Modern Art, and Manuel Castro Caldas, professor and founder of Ar.Co – Centro of Art and Visual Communication.
Gaëtan is represented in public and private collections, namely the Calouste Gulbenkian Foundation, Luso-American Foundation, Caixa Geral de Depósitos, the Ministry of Culture, the Carmona e Costa Foundation, Ar.Co – Center for Art and Visual Communication in Lisbon , is also represented in the Museum of Contemporary Art of Serralves, in Porto, particularly in the works in storage, and in the Museum of Contemporary Art in Funchal, among other institutions.
He was preparing an individual exhibition for the Carmona e Costa Foundation in Lisbon.