Together with Gaspar Montes Iturrioz (1901-1998), Luzuriaga is one of the youngest representatives of the so-called postwar Basque school.

Although he was initially influenced by Daniel Vázquez Díaz (1882-1969) and Evaristo Valle (1873-1951), he gradually abandoned post-Cubist geometric structuring in favour of a softer treatment of delicately chromatic atmospheric effects, creating the impression that the forms are hanging in the air. His work has also been linked with that of Darío de Regoyos (1857-1913). Until the 1980s his drawing was markedly naive.

This work is from the period in which his painting was becoming unsettled and colour and matter were taking primacy over line. The forms dissolve without entirely abandoning delineation, as in this case, where the urban and port structure of the estuary of Bilbao is recognisable. He tackles the industrial landscape with a touch of lyricism; those factory chimneys are treated softly, relieved of their harshness by using warm, uniform colours. The composition rises diagonally towards that diffuse background and plays with contrasts, the black in the foreground and the blue of the clouds.