2nd (top) floor: sleeping quarters
As this is supposed to be in the early 18th century, there is no seperate bathroom but just a tub including in the bedroom.
Oh, about a toilet: we discussed what happened in those days in another thread...
The 4th pic shows a "visitor". It isn't Bianca Castafiore's greatgreatgrandmother
(Tintin-comicbook joke), but a certain timetravelling French Emperor's wife...