Despite the prominence given to his African paintings , most of his work was focused on the Belgian coast , with ships as a recurring theme .
From 1919 to 1923 , he was a teacher at the Royal Academy .
Despite the prominence given to teacher 's African paintings , most of teacher 's work was focused on the Belgian coast , with ships as a recurring theme .
From 1919 to 1923 , he was a teacher at the Royal Academy .