 His works, including landscapes, genre, and portraits, have the bright chromatic sensibility of post-impressionism or late-Macchiaioli painters.The critic M. Bernardi stated that Conterno affirmed "subtlety, the aristocracy of touch, the serene poetry that diffuses from his placid and accurate painterliness" Schialvino describes it him as a painter able to depict small things made large by the insufflation of a poetic spirit, depictions, despite the vagary of the subject, full of "intimacy, exquisiteness, preciosity, meditation, solemnity, and religion.