Lol, if anyone has any suggestion on how to improve the scene I’m glad to hear it.
If I change settings on the rain green screen, rain disappears.
Tha masking on the column remains too much visible, probably because of the double effect (darkening and rain behind).
I don’t know how to darken the sky, cause it has the same problems of the rain.

I can leave it the way it is, with the simple darkening effect.
Or I can add the storm sound, but then when we see the sky, it is not a stormy sky.

I think for the time being I will pass to other scenes, lol.