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Mature Lydia.

With Lydia missing in action, somewhere in Hammerfell, the Jarl of Whiterun has assigned you Lydia's mother, who is also named Lydia.
Your new Housecarl taught her daughter everything she knew, but since she has been doing it longer, she is even better at it. And more, she is from an era when being a Housewife was an important part of being a Housecarl.
Lydia Senior will look after you in more ways than one.

The more mature Lydia, like many middle-aged women, goes to the Apachii Sky Hair Salon, whenever she can afford to, and if she can't afford to, may have a 'Bad Hair Day'. Can you afford not to subscribe to Apachii Sky Hair???

Treat your new Housecarl with the respect she deserves, and you'll never consider the younger version again.
Meanwhile, be understanding of her anxiety for her missing daughter, which shows in every line of her face...

Please examine the other mods and their load order in the datafiles image, for the mod to look like it should.
Especially the position of XCE in relation to the Better Females files.
Do a Google search for the mods you are missing, if they are not on Steam.