As far as I know to achieve the desired effect, ladies resort to eye contacts, intricate hairstyles, special outfits and accessories and even photo retouching. To find out more about the trend, especially how to pull it off yourself, I recommend follow through this guide about ulzzang glaminati.com/uzzlang-trend/. Hope it will make sense for you
Ulzzang is a term commonly used in South Korea to describe pretty face, best face. This term is used to describe popular models in social media with ideal facial features (to be precise, what is considered to be ideal according to Korean beauty standards).
Here are common key points of Ulzzang look:
double eyelids, big eye shape
V line facial shape
light tone perfect skin
well-defined nose with high bridge
slim body
korean style make up (eyeliner, shimmery eye shadow, etc)