She feels really off! I can't place my finger on what's precisely wrong, but something definitely is. If I were to guess, she comes off as much more whiney and just bubbly? While in the comic, at it's start, she seemed more as a friendly and cheerful, maybe even a bit mysterious from time to time.
But tbh I feel like all the kids were hyperbolized to some degree or another. I'm just blaming it on the fact that it's a pilot and I hope they'll seem different once they get more screentime.