@Dune - thx.
Back to normal, so to speak.
One planet, one cloud layer v3 and some global cirrus clouds. Became a little bit to much of a "Dark Sky".
The second picture shows the same scenery but as a more friendly "Blue Sky".
The hills are normal now. Surface Layer Cover = 1.
I did make a new thread for the second picture because I thought I got the cloudscape rather nicely and grain free.
There you can find the original rendered 4K version of landscape.
CHeers, Klaus