hi , after i read your comment i have made two different proposals in the general plan; one consists of a toilet built in the wall you suggested, the other is located on the right hand side, as you can see also in the renders.
the pavement is made of white wood plank , two of the walls are painted in a very strong blue color, and the wall that faces the shower is made of a stylized flower texture. I insert the laundry inside a closet and the 2 meters wardrobe on the left wall.
thank you