My comment, not really to criticize in a bad way, as I said, I really like the art of the game.
The eye observation was only to make the point that is a limitation
-If you want a character with an ulterior motive, put some villain eyes, and the expression will have a huge enhancement.
-The other point of If you want to identify the player, just by removing the eyes, you don't really achieve it, because you leave out: people with different skin color, different hair color and style, different body complexion, and many other characteristics that make the removal of the expressiveness of the eyes meaningless.
Having said that, as I said before, I'm not here to be annoying, I'm here to compliment the art and give just an observation, good luck with your game, I'll give it a try.