I used an app on the iPhone app store called “Face Swap” which is programmed to recognize two faces and swap them and match proportions. It was almost too easy and it created such accurate looking heads that I had to find someone with a darker complexion in order for it to look as if faces had been swapped. That was probably the hardest part. The easiest part was actually creating the edited picture because the app just did it for you after you took the authentic picture. It is not easy to make convincing because many more props are needed to change the setting and give a valid impression so that the actual content (the face swapping) is believable.