Nadya, you were surprised that his photos looked much younger than his stated age.
Sure, it could be he is using old photos, like someone suggested.
But an equally likely explanation is that he lives a healthier lifestyle than many men his age in Russia.
No smoking, less drinking, healthy food, better health care, lots of exercise.
These make a huge difference in how a man shows his age.
In my experience many Russian men look much older because of bad habits.
And many American men live a very healthy lifestyle.
I am sure you could find many 50 year old Americans who look very good compared with men your age in Russia.
Of course it is equally true that many Americans over-eat on bad food and are very obese (fat). But this you can tell in photos!
Good luck and give your man the chance to prove he is still youthful!!