I see, it did read like eyes but I was thinking it might've been the inside light source also. My issue is the position of the eyes seems too close to the lips.
A good way to test this is by a quick hue shift on the face to turn it to human skin, then you might see the face proportions being slightly off.
Here's a gif to show what I mean (3rd frame being my idea where eyes should be):
But yeah it's not a big deal, I'm just trying to give you some constructive feedback and not only praise. This icon does deserve a lot of praise though.