Supporting Evidence - Using layer mask.

           Firstly, I opened up an image that I wanted to use as a background.

Then I got up the picture that I wanted to change the background for, I used the quick                    selection tool to select the background of the image that I wanted to change. Using the add button on the select tool to select the background, and the subtract button to delete and perfect any of the image that I didn’t want the background on that overlapped.

Then I pressed the layer mask icon.

I then clicked on “layer 1” and dragged it down to the “sky.jpg” to swap them around. 

    I then pressed “control I” to get the background around my photograph.

 Finally, I pressed the background layer on the right-hand side column. and then the move tool to stretch the background where I wanted it around my photograph.