But for those who are having the same problem use a reference. Use a reference! You said you're basing it off a k-pop idol so I'm assuming you're already using one. To add onto this if you're open to cc which I assume you are get rid of the maxis eyelash thing with the kijiko maxis eyelash remover. I find ones with the right eyelid look rather than shape as you can always alter that.
So eyes! One thing that really helps for me is analyzing the eyes.
