For these locations, I have not been able to go over there to take photographs, in the meantime some images found on the Internet.
Berzy-le-Sec
In the castle of this village were filmed plans where Yoshiki wandering through the ruins with a rose in hand.
The portal that we see is open on the images below.
Various pics inside the castel.
The church is visible in a short travelling.
Septmonts
Only a few interior shots were filmed in the Donjon de Septmonts.
These sequences are interesting because we can see very briefly on hallways the ghost girl (Didier Deleskiewicz talk about her in his interview as "she"), these plans are the only ones to have been retained in the final cut.