[4] During this period his work embraced the brighter color palette and the brushstroke technique of Impressionism, thus leaving behind the style of the Barbizon School which characterized his formation and early production.
In 1880, he moved to Nesles-la-Vallée then, a short time later, settled in L'Isle-Adam, where he made friends with Vincent van Gogh and Dr. Paul Gachet became one of his best customers.
The other eight participants were Gustave Caillebotte, Paul Gauguin, Armand Guillaumin, Claude Monet, Berthe Morisot, Camille Pissarro, Pierre-Auguste Renoir, and Alfred Sisley.
Critic Félix Fénéon, an ardent promoter of the pointillism and the neo-impressionism movement led by Georges Seurat, negatively assessed Vignon's landscape compositions as generally invariable and dull.
[7] Already afflicted by a heart condition and serious vision problems in the late 1880s, he never really had the chance to evolve into Post-Impressionism, and at the end of the 1890s he started to lose his sight.
In 1900, Dr. Georges Viau, an oral surgeon who was an enthusiastic art collector, helped Vignon to get his works displayed at the Exposition Universelle.