Welcome to SkincareAddiction!
First off, your skin looks great so don't worry too much about it. This is a cliché thing to say but I doubt anyone else even notices them. But that's not the advice you were looking for so here we go:
I'm not a doctor so take this for what it is, but it does look like a very mild case of closed comedones to me. There's no one-size-fits-all fix for that but one thing you could consider is to introduce some kind of exfoliant into your routine, such as AHA or BHA.
Speaking of routine, what's your current routine? It's possible that it's caused by a reaction from a product that you're using.