Hein Vielkind (Austria) seems to be the ski map guy for Europe.
You can see his style in a short video [0] and two German newspaper articles [1] [2] with some pictures.
He describes that his job is not to depict reality one-to-one, but to create an appealing image with the details that are important to the clients.
"‘My most difficult assignment was the panorama of the Arlberg region,‘ he recalls of a particularly elaborate case. Because the tourism associations of St. Anton and Lech permanently disagreed on the size of the depictions, Vielkind had to completely rework the image a total of five times."