Lusi, sorry about the delay, the batteries in the camera were gone. Here are the promised pictures. The work is still in progress, so ignore the dust sheet in the bath and the protective film on the panels.
The bottom part of the folded screen
The top part
The screen can unfold either way, here it is over the bath
Unfolded screen
When unfolded, the distance between the screen and the sink is not that big
I don't like cleaning and tiding up either, so put a vanity unit and a toilet with a concealed cistern. The doors and the panel of the toilet cabinet are not in place yet
I didn't put the shower by the sink because the extractor fan is on that wall over the bath (the whole for the duct was already there).
A shaver socket is a standard feature, so I put one although don't need it myself. There is also a towel rail by the other side of the door (opposite the toilet). If you are going to have one and want it to have an electrical heating element, ask you electrician for a quotation for it too.
The only thing I would change if were doing it now, would be the sink. I would rather have something like this - over the whole cabinet.
http://www.wickes.co.uk/vanity-unit-package/invt/199700/
Doesn't matter, my next bathroom will have such a sink