I can share with you two beautiful stamps I have bought in Copenhagen. When I bought them I thought that these are some kind of painting reproductions but now I searched for the authors and it appears that these two are photographies from two different Danish photographers - Krass Clement and Viggo Rivad.
Reason why I noticed these stamps is because they stood out from all the others. I don't remember seeing much black and white kind of stamps. What is interesting about these two photographers that it appears that they both are autodidacts in the field of photography. And I must admit that they have learned this kind of art very good and the results are impressive.
Enjoy the stamps and photos on them!