This is clearly a copyright violation. I don’t even know the name of the photographer. What you see here are two photos of the same person, one friendly, one aggressive. They are mounted on triangular prisms, so that you see one photo when you look from the left side, the other from the right side. I found it most interesting from the front 😃
There is a couple of similar images, but this was the most easy to photograph without excessive reflections. The photos alone are a good reason to visit castle and exhibition.