I have seen Helen mirren in real life. As in a few feet away and no crowd. I was able to observe for a few mins. She was without much make up, hair done naturally, casually dressed.
she is tiny in real life, very slim, she’s only 5ft3, she is attractive, but she does not look as glowy/polished as the red carpet or photo shoot images we see.
is she average for a woman nearing 80. No she’s not. Not even close. And that’s because she has maintained her muscle mass, obvs through exercise, her teeth and hair are great and clearly takes good care of her skin and dresses very well, even in casual moments.
does she look her age, yes in that range roughly, maybe a bit younger , ie early 70s, but she embraces age, rather than hides from it.
I wouldn’t say at all her looks faded with age, I’d say she is still attractive, but she’s obviously put in a lot of effort for that, through hair, exercise, nutrition, teeth, skin care and clothing etc