I told here I came from Holland and she said she wanted to see Amsterdam. Asked if I could help her.

I told her: 'stay ther, don't move!' and I surfed to PolyHaven.com, did a search for 'Amsterdam' and downloaded 'Cloudy Vondelpark'.

Back in Poser I clicked somewhere on the background. This caused a prop 'environment preview' to be selected. I went to the material room and found the 'default' material selected. In the 'image map' I selected 'browse' and selected the cloudy_vondelpark_4k.exr I just downloaded:

Then, here comes the trick! I did NOT use 'OK' but the 'Replace All Identical Maps' button in the lower bar of the dialog. From the dropdown I selected 'Scene':

(tech note: this replaces the map in the 'environment preview' prop, in the light that illumunates the preview scene, and in the background shader that causes the IBL and the background. ) 

Roxy instantly found herself in a misty Vondelpark. (Hey girl, walking on the grass is not recommended, and forbidden.)

What was left for me to do was to move here to the path (=less dogshit there) and hit 'Render'