coming from a non-korean person who loves korean pop culture, this is really beautiful and fun! the color scheme and novelties work so nicely and I definitely get the "nightlife" feeling. great work.
one comment I have is about the novelties - the eyelash one kinda sticks out from all the rest because of how minimal it is. all the others are distinct objects and have many lines, curves, and empty spaces. they take up more space on the keycap and depict more obvious themes. have you considered other icons that represent beauty/skincare that are more uniform with the other icons? maybe skincare/makeup products like lipstick, mascara, lotion, etc.