SPFX DEPT.

Scenes from VIKING WOMEN AND THE SEA SERPENT (1957)

This low budget Roger Corman movie, shot in a week, has some excellent matte paintings, including these two shots (back to back in the movie) with the castle exterior and interior. I couldn't find the artist(s) responsible for these matte paintings.

Also known as THE SAGA OF THE VIKING WOMEN AND THEIR VOYAGE TO THE WATERS OF THE GREAT SEA SERPENT.