Very nice scene and interesting processing choices, I particularly like detectives and popofcolorum
Nicely done, Firenze and the Arno!
My favs are no. 2 and no. 4
I like images 1, 3 & 4. I like image 2 also but find the texture a bit too strong on the sky and water areas. The texture in the last (urban canvas) is more subtle but effective.