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.
In this simple Photoshop tutorial we will create an image that will look like there is a photo inside of a photo and add some radial blur for the more dynamic effect.
Pretty simple and useful tutorial, where you will open a random photograph with smoke and convert it into something really not friendly for our environment.