Custom Function issues

I tried to do the assignment but I ran into a couple of issues:

    void setup() {
 
   size(2000, 1900);
 
   smooth();
 
  }
 
  void draw() {
 
   background(0);
 
   randomSeed(0);
  for (int i = 65; i < width + 20; i += 40) {
  int gray = int(random(0, 102));
  float scalar = random(0.25, 1.0);
  snowman(i, 110, gray, scalar);
 
   }
 
  }
      void snowman (int x, int y, int z, float s){
        translate(x,y);
        noStroke();
    ellipse(250,350,300,200);
    ellipse(250,250,250,150);
    ellipse(250,150,150,150);
    stroke(67,13,3);
    strokeWeight(5);
    fill(67,13,3);
    line(150,220,50,220);
    line(50,220,30,200);
    line(50,220,30,220);
    line(50,220,30,240);
   
    line(350,220,450,220);
    line(450,220,470,200);
    line(450,220,470,220);
    line(450,220,470,240);
   
    ellipse(275,130,10,15);
    ellipse(225,130,10,15);
   
    ellipse(250,210,10,10);
    ellipse(250,235,10,10);
    ellipse(250,260,10,10);
    fill(255);
    arc(180, 150, 200, 60, 0, PI/3);
    strokeWeight(1);
    fill(255,94,0);
    triangle(250, 160, 250, 150, 200, 170);
 
      }
   
       

The main issue is that I can't make it into different sizes, might be something wrong with my for loop.