I think this is a pleasing image and that it is well exposed for the largest area of the imageāthe white stairs. You can see detail in all of them, right down to the lowest. In my opinion, exposing for the stairs was the right call.
I don't think this image needs much detail in the dark clothing and faces but, if it does, it should be possible to get enough to satisfy.
I find the very small dark area in the top right corner out of place with the subtle tones in the major part of the image and I would clone away that area and replace it with some of the adjacent area and darken it a little.
I would also darken the hemisphere at the bottom centre to see if doing so added drama/tension to the image.
Great shot!
Roger