size (360,560);
noFill();
for (int row = 0; row <22; row += 1) {
for (int col = 0; col < 12; col += 1) {
pushMatrix();
translate(60+20*col,60+20*row);
float jitter = random(-3.5*row,3.5*row); //degree of jitter
rotate(radians(jitter));
rect(0,0,20,20);
popMatrix();
}
}