Lately I've been watching some Joel Grimes' videos on portrait editing where he first adjusts a color layer then duplicates it, turns the duplicate into a B&W layer, adjusts the saturations of orange and yellow within the B&W layer, then changes the blend mode. The process adds contrast especially by altering the yellows and oranges within the B&W layer. Unfortunately I can't find a link (I paid for a Creative Live class).
When I saw this article which uses a B&W adjustment layer, it sounds like a similar editing process but is used for landscape images.
https://fstoppers.com/photoshop/how-create-depth-color-images-using-black-and-white-573981
When I saw this article which uses a B&W adjustment layer, it sounds like a similar editing process but is used for landscape images.
https://fstoppers.com/photoshop/how-create-depth-color-images-using-black-and-white-573981