[6] He developed an interest in painting at a young age and attended art classes in the workshop of Dimitar Andonov-Papradinski, an icon painter in Skopje.
[7] Martinoski spent two years (1927–1928) in Paris at the Académie de la Grande Chaumière,[citation needed] which is famous for former students Amedeo Modigliani and Boris Anrep and the Académie Ranson with artists like the Polish painter Moise Kisling and Roger Bissiere, who acted as mentors.
He developed a very specific expressionistic style and started dealing with social themes rather than portraits.
While he continued drawing, painting, and exhibiting, Martinoski also began creating large murals.
[8] Many of Martinoski's works were greatly influenced by medieval fresco art and modern Parisian school crisscross.