This is a labor intensive thing to do. You have to remove the monitor, and take a picture of the room. Then, upload the picture and crop it to the perfect size. Then, set the cropped picture as the desktop background. Then, take another picture of the room (from the perfect angle) with the cropped picture as the background.
You could do this with Photo Shop if you have access to it. Either way, you have to have a picture of the room without the monitor, crop it, and place the image where the display is on the monitor. Then add the desktop icons to complete the effect.
It has to be done perfectly or it won’t work. This is by far the tightest one of several that I have seen.