Help Make Mr. Piggy Smile

Here's my first bid of code in Processing, written for ICM. I'm having trouble with curves and arcs, so Mister Piggy is a pretty serious dude for now. Someday he will smile.

the pig: http://itp.nyu.edu/~jj891/ICM/week1/index.html

the code:
size(200,200);
background(0,0,255);
smooth();
rectMode(CENTER);
//piggy head
stroke(0);
fill(245,80,120);
ellipse(100,85,150,125);
//piggy nose
stroke(0);
fill(255,100,100);
ellipse(100,100,40,30);
//piggy nostrils
stroke(0);
fill(0);
ellipse(95,100,10,10);
ellipse(105,100,10,10);
//piggy eyes
stroke(0);
fill(255);
ellipse(70,70,30,20);
ellipse(130,70,30,20);
//piggy pupils
fill(0);
ellipse(70,75,7,7);
ellipse(130,75,7,7);
//piggy bow tie
fill(255,255,0);
stroke(0);
triangle(60,140,95,160,60,180);
triangle(140,140,105,160,140,180);
ellipse(100,160,20,15);
//piggy smile
//someday!