Many of his work were exhibited and are permanently located at
the Museum of Modern Art, in New York; the San Francisco Museum;
the Institute of Arts, in Chicago; the Modern Art, in Paris;
the Art Gallery, Stockholm; Bienal Americana, in Mexico; Bellas
Mariano is often called a "magician", who converted nature's
light and forms into a beautiful object. He was a "rebel"
against all modern trends already established in his time. A
trend that would not give way to any new form of expression. In
1941 started working on his "gallos",- roosters that gave him
great popularity and one of them were acquired by the New York
Museum of Art.
He have said: "I consider myself more an expressionist than an abstract
artist, since the abstract is foreign to
reality and the artist con only give it texture and space;
although I always start from reality, always thinking of it and
in my themes". This is true.