Translation:Do you know the man in this picture?
English considers all the original elements of a composition (photo or painting) to be "in" the picture. If you write comments or apply marks or spill your coffee, these would be "on" or "over" the picture. That is to say that the picture has a surface (real or imaginary) and the image is "in" the finished picture while any other marks are "on" the surface. Perhaps confusingly, the photo is "on" the paper and the paint is "on" the canvas. These are just the everyday conventions and not a theory of art!