Disclaimer: Harry Potter is not mine, JK Rowling's.
~Hermione~
It's kind of fascinating how this mirror allows you to see more about a person. I mean, without having to worry about him catching me, I've begun to notice all the little freckles Ron has on his nose; they're quite cute. And I can't say I've even seen my hair that flat... I don't think the most advanced magic could make it less frizzy and trust me, I've tried. I can see my Ministry badge, "DRCMC"... and in the background I can see everyone; Harry and Ginny together, Fred and George laughing and Remus and Tonks. Everyone's safe, everyone's alive.
Authors Note: DRCMC stands for "Department for the Regulation and Control of Magical Creatures" where Hermione is said to have worked after getting out of school.
And I do realize that there are many different possibilities for what Hermione would see, so I tried to add the most important ones: Ron, having a job where she can do good, and her friends safe.