Thank you.
I tried some softer renders. In one the water was bad because of some things i changed probably (using a planet,soft light or whatever).
I just didn't change those things and just added a soft light and tried the suggestions from Hannes and Ulco about the vertical lines.
It worked as it looks. Thanks.
Detail was 0.7, AA 8. I think especially the changes about water made the image very slow to render. Instead of 3-5 hours it took 14 hours.
But no problem for a still image.
Curious what you think about this softer version.