Camille Pissarro
With Monet, Cézanne, and Guillaumin

In 1859, while attending the free school, the Académie Suisse, Pissarro became friends with a number of younger artists who likewise chose to paint in the more realistic style. Among them were Claude Monet, Armand Guillaumin and Paul Cézanne. What they shared in common was their dissatisfaction with the dictates of the Salon. Cézanne's work had been mocked at the time by the others in the school, and, writes Rewald, in his later years Cézanne "never forgot the sympathy and understanding with which Pissarro encouraged him." As a part of the group, Pissarro was comforted from knowing he was not alone, and that others similarly struggled with their art.

Pissarro agreed with the group about the importance of portraying individuals in natural settings, and expressed his dislike of any artifice or grandeur in his works, despite what the Salon demanded for its exhibits. In 1863 almost all of the group's paintings were rejected by the Salon, and French Emperor Napoleon III instead decided to place their paintings in a separate exhibit hall, the Salon des Refusés. However, only works of Pissarro and Cézanne were included, and the separate exhibit brought a hostile response from both the officials of the Salon and the public.

In subsequent Salon exhibits of 1865 and 1866, Pissarro acknowledged his influences from Melbye and Corot, whom he listed as his masters in the catalogue. But in the exhibition of 1868 he no longer credited other artists as an influence, in effect declaring his independence as a painter. This was noted at the time by art critic and author Émile Zola, who offered his opinion:

Another writer tries to describe elements of Pissarro's style:

And though, on orders from the hanging Committee and the Marquis de Chennevières, Pissarro's paintings of Pontoise for example had been skyed, hung near the ceiling, this did not prevent Jules-Antoine Castagnary from noting that the qualities of his paintings had been observed by art lovers. At the age of thirty-eight, Pissarro had begun to win himself a reputation as a landscapist to rival Corot and Daubigny.

In the late 1860s or early 1870s, Pissarro became fascinated with Japanese prints, which influenced his desire to experiment in new compositions. He described the art to his son Lucien:
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