Contemporary Bathroom by Michael Tauber Architecture. If you put shelves in your niche, then you can go the extreme vertically instead of horizontally. This is a little more affordable option when it comes to the work of constructing the wall.
Contemporary Bathroom by LeichtUSA. This dreamy bath has privacy through a walled courtyard outside the window. The wall is high enough to provide screening but not so high that it blocks out mountaintop views.