I make this with Photoshop. This is monument wchich stand in front od major building AGH University of Science and Technology in Cracow (Poland). To make this picture a bit "old" by scans of old pages from books and mix it in Photoshop. I also make pose Metallurgists base on my few photos (to save orginal proportions).
I paint Metallurgists on tablet (oryginal picture size is 2580/3360).