According to her interview with @star1, she thinks Doyeon is #1, Somi is #2, and Jieqiong is #3. She then added, "Sohye got really pretty, too. Everyone is so beautiful. I think it has something to do with the 'camera massage'."
@star1 also revealed a bunch of Chaeyeon's solo cuts, so check them out below! You can see the original pictures here.