There are many different techniques and ways of creating a selective color images in Photoshop, let me show you the one where we use the black & white adjustment layer.
The ability to save any of your selections and then use them at any given time is another useful Adobe Photoshop option. Let me show you how to use it.
Pretty simple and not to long Photoshop tutorial, where you will add a random photo of a person onto a rock and then make it look like it's been engraved.