This is my code for the project. The mouth is only opening and not closing. What is wrong here? Why is it not working?

var mouth1 = 221;

draw = function() {
background(255, 171, 171);

fill(0, 0, 0);
ellipse(105, 130, 47, 47);

fill(0, 0, 0);
ellipse(281, 130, 47, 47);

fill(255, 255, 255);
ellipse(115, 122, 12, 12);
ellipse(290, 122, 12, 12);
ellipse(104, 133, 9, 9);
ellipse(282, 133, 9, 9);

fill(0, 0, 0);
ellipse(199, 258, 123, mouth1);


mouth1 -= 2;

fill(255, 0, 0);
text("Click restart after 3 seconds.", 138, 33, 146, 85);
println(mouth1);

if (mouth1 <= 36) {
mouth1 += 2;
}
if (mouth1 >= -195) {
mouth1 -= 2;
}

};

I expected the mouth to both open and close. But the only thing that is happening is the mouth is opening. What is wrong?