First things first-why'd they do this to them?
Second-They all look like they are from different groups and are doing a collab stage.

1. Hana-I mean her outfit has an obvious idea behind it. The purple crop is nice and the black and white pants with the belt is nice.
2. Nayoung-Yes, it is a plain outfit but it at least matches and has some small highlights to make it stand out a little.
3. Mimi-Again, a boring outfit but at least it looks cohesive.
4. Sally-I hate the fit of the cropped top and I hate it coupled with the noticeable band of the pants.
5. Haebin-Looks like she walked out of the practice room and onto the stage and didn't have time to get styled. At least the pants and boots are cute.
6. Mina-Look I know this should probably be higher but I hate clashing patterns and I just can't stand the plaid top cover and then the rainbow striped shirt underneath. Hideous.
7. Soyee-This is a plain outfit again but I hate the clash of the different plaids.
8. Sejeong-The one-sleeved puffy purple shirt with the red plaid skirt upsets me deeply.