Anders Leonard Zorn was one of Sweden's foremost artists. He obtained international success as a painter, sculptor, and etcher. Among Zorn's portrait subjects were King Oscar II of Sweden, and three American Presidents, Grover Cleveland, William H. Taft, and Theodore Roosevelt. At the end of his life, he established the Swedish literary Bellman Prize in 1920.
More Zorn art: https://artvee.com/artist/anders-zorn/
Is this a painting?
Watercolor.
https://en.m.wikipedia.org/wiki/Sommarn%C3%B6je
It looks so good! Like a photograph at first glance