Olivier, thank you so much for the wonderful photos. Like Julia said, it such a privilege to seem them growing in their natural habitat.
I will create a new entry in the database:
Sempervivum calcareum from Remuzat area of Drôme, France
Hen and Chick (Sempervivum calcareum 'from Remuzat Area')
I will add the rest of the photos once the database does an update on this new entry. I can take about 10 to 30 minutes for the update.