I share for whoever wants: New preset “Watercolour” or “Oil painting”, whatever you want to call it.
It’s for me better than the DorS preset: “simulate watercolor”.
There is a module that is not intended to be artistic: “Denoise (profiled)”.
To achieve the watercolour effect, the module is configured as follows:
mode: wavelets
if exist profile: set max iso
Colour mode: RGB
tab All: all points above
strength: 4.000
preserve shadows: 1.00
Then adjust strength until it looks the way you want.
I hope it was interesting and enjoy it.
Here is an example: