I wanted to see if another format could improve the picture.
So I cropped off the top of the sky. I think that the wonderful blue sky must be kept, but occupied too much space. This leads to a unusual format, but why not ?
I used a contrast mask (duplicate the layer, desaturate, invert and set the overlay blend mode) with opacity 100%. This lightens the beautiful fountain in the foreground.
I used Unsharp Mask with radius 20% and amount 0.25. I think that it improves the local contrast and make the picture pop out.
What do you think ?