He was influenced by a group of iconoclasts who went known by the title "the Macchiaioli" which means dashes of color. This goes for the whole of his artwork, not specifically the painting you mention.
Quite a lot of them, actually. You can always recognize her long, slender neck and red hair. And they are usually called "Jeanne" or "Jeanne Hébuterne". But did not seem to use her as a model for an...