ᐅ Expanding the bathroom in the attic, including the sloped ceilings

Hello everyone,
After deciding against converting a study into a bathroom, we have now confirmed that we will enlarge the existing bathroom in the attic of the house.
We want to turn a small shower room into our new main bathroom.

As you can see in the pictures, the wall has already been removed. Now a new drywall partition will be installed.
The goal is to have a bathroom with a larger, walk-in shower, a toilet, and a large washbasin.
I have attached an initial layout plan.
The fresh water pipes are located in the rear right corner, and the drain pipe is inside the chimney.

We plan to tile the shower tray, and the enclosure at the end of the shower is intended to be used as a sort of footrest.

At the moment, we can't think of any other layout that would make sense. Do you perhaps have any suggestions?

We plan to tile the shower tray, and the enclosure at the end of the shower is intended to be used as a sort of footrest.

Thanks in advance for any new input!