Alfred Sisley's lack of attention in his lifetime was due to his divergence from traditional art standards, while Paul Cézanne's significant contributions to Post-Impressionism and influence on later artistic movements set him apart in art history.
Alfred Sisley did not receive much attention during his lifetime because his work did not conform to the traditional art standards of the time, particularly those set by the Académie des Beaux-Arts, which focused on historical subjects and portraits rather than landscapes.
On the other hand, Paul Cézanne gained importance among art historians for his unique approach to painting, characterized by repetitive brushstrokes, planes of color, and an intense study of his subjects, which contributed to the development of Post-Impressionism.
The work of Cézanne, especially his focus on form, color, and his analytical approach to nature, influenced various art movements such as Cubism, Fauvism, and subsequent generations of avant-garde artists.
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