How to achieve these colors
from:

Good evening,
In a French photography magazine, a recently saw 2 following pictures :
https://www.chassimages.com/forum/in...,292938.0.html

May I please ask you how to achieve such post-processing in Photoshop ? More specifically, such colors - this is not just saturation which was augmented, this should another treatment.

Would you may be have some ideas ?

Many thanks in advance !

Poster :
irinchen