This is a nun. And she’s cool.
I like the idea, but I think more contrast to the image would make it much better. Right now she’s almost standing in the dark, and there are few shadows - if any.
More contrast, more shadows. That would improve this render.
You might also consider some volumetric light through the window.
Thank you for your feedback!
I played with the light for a long time and I liked the final version.
But I’ll play with the light some more, for fun, as you suggested)