I modified the layout mainly by changing the left rock to a shorter one with more surface relief:
Anubia roots are heading to the substrate. They don't dry in the moist air and I could remove cotton now:
Now, the P. Helferi is showing an interesting move to the emersed less sexy form:
The P. Helferi in middle of the tank are still showing a nice submerged form (look at the one in 2nd photo, on the right of the anubia). The front lateral plantlets are loosing submerged leaves and sending emersed ones. I don't get it why, but the light, more intense in the middle, can be an explanation
I'm also thinking at the fish. It will be around 10-15 Boraras maculatus red fish or the Danio erythromicron (blue fish, but likes harder water and very shy not shoaling), some critters or some Hara jerdoni
I need an advice on what I can put all behind/above the big mountain on the right: Anubia var nana (not petite), Winlow Java fern?