Jennie is pretty much natural imo. The glowup is probably just from puberty, makeup & other nonsurgical treatments. She had the exotic asian girl look since she's very young, judging by her past photos.
I think the only BP girls that have done ps are Lisa & Rose. Lisa's nose is very unnatural looking tbh and her skin whitening is obv, idk if it's from surgical treatment or just antioxidant injection.
Rose's eyelid job is too obvious, judging by her past photos.
Everytime SNSD wants to comeback i notice their faces changed. In this case, Sooyoung, her face looks 5x younger in this pic.Spoiler
sooyoung's just look like hairstyle changed, i noticed as well with my friends that short hair makes them look younger