The uniqueness of groks faces has come so far. Also, for those that don't know, you can call every shot, nose size, ear size, hairline, eye size/width. Pretty much anything you can think of.
If you want to have some fun make a prompt with those fields and tell grok that you will be using them as a numeric sliding scale with 0 being comically small and 100 being massive. Then test out what the different values do.