At the end, I found "the peace of mind" thanks also to all your feedbacks, and now I want to follow a new philosophy, "less is more"... in other words, use as few filters as I can - to not overprocessing as I did with my former script.
But, anyway, should I add a derainbow filter? And what about a smoother? Will be they useful? Will be they really needed?
The last words to the experts.