I have had this congregational house in my mind for some time, and decided to build it in Blender 2.8, which was much less problematic than I thought it would be.
This time I decided to elevate the choir well above the ground floor, and added a gallery that goes around the eniter room.
I was initially trying to create a nightime shot, without environmental lighting, but it didnt look right.
Rendered with 650 samples (Branched Path Tracer) in Cycles and denoised at 14px with default settings.
I highly appreciate any critism and questions.
EDIT: Render from the view of the choir