speaking as someone who's read like, 2 comics with Artemis in them ...
If I had to pick a perfect Artemis moment, it would be one of the scenes in the movie, either
Artemis: We shouldn't have let her go Hippolyta: Indeed? How would you have stopped her? Artemis: I could have shot her in the leg. Not near an artery, of course. Hippolyta: You are the soul of thoughtfulness, Artemis.
or the scene near the end where she's reading ^_^.