How did Alfred Sisley influence impressionism?

Alfred Sisley was a key figure in the Impressionist movement, known for his exquisite landscapes that captured the effects of light and atmosphere. His use of vibrant colors and loose brushwork exemplified the Impressionist style, emphasizing the fleeting moments of nature. Unlike some of his contemporaries, Sisley's focus remained steadfast on landscape painting, which helped to elevate the genre within the movement. His dedication to plein air painting and his ability to convey emotion through nature significantly influenced the direction of Impressionism.