She had drawn (very prominently) black plug earrings in the man's ears, identical to the ones her own father was wearing. And she specifically pointed them out to her dad as she beamed and he lovingly smiled back at her.
I would say it's pretty atypical for a dad to have plug earrings and lots of tattoos and a mohawk. The point of this isn't what he looked like or what I thought of it (he actually pulled it off quite well--maybe he was in a rock band?). The point is that this girl's dad did have these things, and she was proud of him and looked up to him and loved him exactly as he was. She drew his quirky and unusual style choices into her drawing of him, and beamed with pride as she shared it.
It made me think of my relationship with my own dad--not because he has plug earrings or a mohawk (!) but because of that adoring look I witnessed between father and daughter. I think any Daddy's Girl would have recognized that look. It was such a sweet moment. I feel lucky to have seen it.