Landscape by the river. Who is the author?

[johndoe]

Dear forum users . Tell me, who can be the author of this picture? And at what level of art ? About the picture : oil paintings on canvas, about the size of 45 * 60 , good condition ( in the upper right corner there is a talus paint) , canvas and stretcher old , no sign of any other inscriptions and markings not. I would appreciate any feedback!