In your opinion, what are Loona's most beautiful smiles? And which one is your favorite? I'll tell you mine:

For me, her best smile is the one in the first photo because, for me, it symbolizes all of Loona's development and evolution since the beginning of the series. It's a very kind smile, she's happy that her father is well, and her helping to look after Stolas by lending him her own clothes, it's very cute, she's a good girl.