Thanks for all the likes and nice comments. When you are very, very happy in Germany, they say: "I'm floating on cloud number 7." Well, I AM cloud number 7!
@WojtasS The coppering consists of self-adhesive copper foil, which I applied plate by plate.
@Uwek
I bought a 3mm thick PVC film. From the company Shipyard there is also a suitable port quay for the Mercury. I didn't buy that, but the nice guys from Shipyard kindly sent me the part of this kit that forms the bottom plate into which the Mercury is inserted. This gave me the exact outline of the wake. Now it was measured accurately and then the opening was cut in the foil.
The water consists of several layers. I used transparent window stains and formed the waves and the whitecaps from water gel.
To support the water surface, I bought many acrylic tubes, in different lengths. This is how the wave shape was created.
All sections of the walls that are "under water" I colored with the window stain; for this I took a sponge and dabbed the paint on with it.
So, as always, I hope that DeepL has now translated this so that you all know what I wanted to tell you....