Your original dark photo is the best one. Not for a commercial application, of course, but for art. The loss of detail in the clothes is actually good. The halo is good. Seeing the folds in the curtain is good. The overall dark mood is great. Keeping everything dim and dark except for the face is good.
The lighter one is ordinary. You'll probably have to do that to make your customers happy. But your dark version is art. An entire dark series like this as a personal project, and with interesting characters, would be very cool.