Portrait of an elegant man in bust, arms crossed, particularly lively by the incisive gaze through his large round glasses. The man in the dark green suit stands out against a lighter blue-green background.

The man seems resigned to patiently waiting for the end of the pose, his head slightly bent as if to fit into the canvas. The gaze remains questioning towards this artist, who made a total of ten portraits of him.

The model, the professor of medicine Robert Coliez, maintained a relationship of trust with the artist throughout his life after the success of a delicate surgical operation undergone in 1938.