Looking for ideas to design a bathroom

Really great! Even professionally visualized. Awesome! Thank you!

From 1.60 meters you simply don't need a door anymore. After 2 meters there are no more splashes either. And the 1.80 meter tub in the middle, there is only about 70 cm left on each side (minus plaster and tiles). In my opinion, this is not successful nor suitable for the room. (It's like trying to build a standard house on a slope ;))

We implemented it similarly. The cistern and shower drain are integrated into the partition wall, the window glass only goes up to 2.20 meters just like the entire partition is not ceiling-high. This makes ventilation easier.

Cool! So far I haven't been able to find a photo on the internet where this has been implemented like that. Would you mind posting a photo sometime?

Who is this "one" and what is the disadvantage if a fancy toilet catches the first glance when entering the bathroom?

I always ask myself that too ;)

I would like to move the door.

Unfortunately, it is not possible to see what the room at the bottom of the plan means, but apparently there is supposed to be closet space there, so moving the door could already be unfavorable. Here a fairly wide vanity with drawer storage can be chosen without any problems, and to the right of the tub, a floor-to-ceiling end shelf with a towel holder next to it (alternatively also as a towel radiator) could be chosen.

... and you can very nicely create or zone rooms with tiles:

The window wall is 0.3 m + 1.9 m window + 1.2 m