Aromatic Mist
Sensuble
I've actually been thinking the same thing.
Would also be interesting if this game was the region Kalos was at war with.
I think this is very unlikely because the palm trees and the like, but maybe a UK based region? It's a major stretch which I don't see happening, but the UK and France are notorious for wars and the like, and as well as that, they fought over America, which could explain the presence of Serperior on the Parfum Palace gates and the Reshiram/Zekrom statues in that same garden.