This is fun: I did a new self-portrait for my lock screen (along with my email, in case I leave it somewhere), and iOS automagically tucks the time display in behind my hair. :)
I've also been making a short vid about how to add a longer alphanumeric password, and noticed that the screen recording tool hides the keypad and stand-in characters (circles) as you're putting it in, so it doesn't even show how long the code is. Couple of cool little features!