I’m excluding photoshop and assuming real muscles and real bf%.
That is, in the real world outside the studio where lighting is not as broad or at a perfect angle, it takes huge genetic talent – in the 1 percentile – and years of hard work in order to look like the people in the picture once past a certain age.

I know it’s very difficult to understand this without spending hours on end in a gym watching people train, so you can always look at the short careers of models as an example:
Here you have young beautiful women (well, too skinny for me…) that do nothing except look good and eat as little as possible. Despite what you may have heard, a great many of this girls do keep a healthy diet and are training regularly. Even so, very few of this perfect skin, nice hair, skinny elite ever survive the runway past 30 let alone 25. They will gain weight and lose that skinny figure despite all the cosmetic surgery and substance abuse a 5 digit salary can afford.

Now for man the opposite is true. Because man, even natural non-steroid users, will keep gaining muscle mass and become stronger until they’ll hit 40 years old, it’s very common to see a lifter in his mid 20th with a big beer belly become far more muscular and lean then the boy above for the simple reason that all that muscle he accumulated through the years adds a large caloric deficit. For my training partner this means that now as 37 year old lifter, he has rippling quads, hams pecs and abs while needing 5500 calories in a training week and 4500 when he’s off in vacation just to maintain his 100kg weight.