This scene has some great potential, but falls short of the mark IMO.
It is very middle grey on the conversion (assuming shot digitally) with little to no true black, true white.
A single person carrying shopping bags, specifically a bagguette from the local baker, in the scene would've made a world of difference.
The top center kills it for me. I don't think any post processing will bring back any detail.
The lines you've found and used are really nice, it's just the other points that make this so-so IMO.
Hope you enjoyed your trip. Italia is a wonderful place to be.