The only pattern I could observe was that he has more hair on his arms and legs, another is that his face is much thinner due to training for the last bodybuilding competition, it is difficult to find images where he appears with friends other than shared images, as you observed, I have doubts as to whether I am facing widespread manipulation because I don't notice differences, if the changes were "major" the old videos would reveal fraud, like the recent video of Darenger Mccarthy on the trail, or practicing poses, the difference between these two bodybuilders is huge. Could you retrieve an image or the address of this "photograph" to better support your argument?