Georg Eduard Otto Saal was a 19th century German landscape painter known in particular for his sweeping views of Norwegian mountains and fjords, portrayed with visceral attention to detail and dramatic lighting.
Later in his career, he visited the Forest of Fontainebleau and was introduced to the work of the Barbizon Painters, resulting in change in his approach to simplify his approach emphasize plein air over studio work, take on more humble subjects.
There is not a great deal of work by Saal online, but I’ve put together a what links I could find for you below.