Hi Fred,
I’m not an expert but I have been trying to achieve photorealism in my own projects. From that perspective, your rendering looks perfect! Initially, I though you picked approximately matching indoor HDRIs from hdriheaven.com and matched the lighting so well. So I was actually going to pose questions about how you did it. But then I read that you captured your own HDRI of the scene which makes sense. In any case, you did a marvelous job!
I’m sure other VFX experts will chime in with advice on what to improve further. I couldn’t find one.
