You know what, dear friend,
If I were you, I would try to reduce the part with the sky a little ...
I know that this is beautiful blue, but enough is enough as Lt Columbo said once when two killer dobermans were trying to lick him to death LOL
Seriously, the image is beautiful and you must have had some reasons for making the 50:50 proportion.
In fact there is also another division - horizontal [the left is dark green and darker blue while the right one is light yellow, orange and blue]. This is especially charming about this image - this cross-wise division. But...
This is just a suggestion that perhaps you might try and show some more of the landscape instead of the sky. Just lifting the camera slightly.
Yours SAM

That sure is a gorgeous city. I wish we could have seen it. SAM has a good idea bout the 50/50 thing. I love the lighting and the colors. Super clarity, too.

I would like to see more sky and less city. Just kidding, Raphael. I for one thought the contrast between the the urban side versus the surburban side was terrific. The focus and detail are also excellent.

Wonderful shot. So much to see, so much to look at. Italy is looking pretty wonder-full.
Tom

Great composition Raph !!
This photo is as clear as crystal my friend !