The nice vintage look of the baton markers and leaf hands with a waterproof screwed case back, the best of two worlds for me between the first series snap case back and the more modern hands and markers of later series. And on top of that in R version it is gorgeously awesome and awesomely gorgeous 😉👍👌💪💪👏👏.
As for the strap I fully share your approach of dressing down a very classy watch and I also agree with the rose gold case + green strap combo but I am not sure about this green and texture. I made another choice with also the same complication and case colour but a more classic texture (alligator) and more fancy green… it works well imho not formal at all yet classy…

and huge congrats again on your watch, it is incredibly charming and beautiful 👍👏👏