Parent bathroom + children's bathroom arrangements

Hello,

please help me. For days I have been drawing various layouts over and over and thinking I have found a solution, only to discard it again. It is driving me crazy.

I want built-in walk-in showers without doors in both bathrooms.
In the master bathroom, a small bathtub is planned as well as a walk-in shower with comfortable dimensions and, if possible, a double sink.

You will find the architect's proposal.
I don't find the shower partition in the children's bathroom long enough, but it probably can't be longer because of the window.

In the master bathroom, the toilet bowl is too close to the shower entrance. Maybe the shower wall could be shortened.

Do you have any ideas?
The two drawings are from me.
Windows are not fixed and can be changed at will.

The drawing with washing machine + dryer is the children's bathroom.

Thanks already!

How long and wide should a walk-in shower be at least to be really comfortable? Is 1.60 enough or better 1.8 or even 2 m? In the parents' bathroom, the architect marked 2 m length. From which length do you think it is over the top? The access is only from one side. Would you shorten it to 1.6 m or 1.8 m length?

Ok, I have redrawn the master bathroom. Do you prefer no. 1 or 2?

Are your drawings to scale? Why don't you add some measurements?

Is the need for you adults really 2 sinks, a bathtub, and a shower? And how old are the kids? Don’t they take baths?

The last two yes. I will do that again in more detail later.

The room is 3.10 m wide and 3.55 m long in the shell construction.
Bathtub 1.70x0.70.
Built-in shower 1.30m×1.80m (or shorter or longer, whatever works without a door, I have drawn it with 1.8m).
Washbasins are 55cm deep and 0.65m wide.
The toilet bowl needs 0.90×0.90.