He, Emil Filla, Antonín Procházka, and five others founded Osma (The Eight), an Expressionist-oriented group of artists.
[1] Kubišta came to his individual expression gradually, at first he was influenced by the work of Vincent van Gogh and Paul Cézanne.
Kubišta, like several other Czech artists of his generation, was strongly affected by the 1905 Edvard Munch exhibition in Prague.
He worked in an Expressionist style until 1910, and exchanged ideas with German painters in Die Brücke.
He studied colour theory, analyzing the harmonic and compositional principles of painters such as El Greco, Eugène Delacroix, Vincent van Gogh, and Edvard Munch.