size(300,300);
  background(0);
  fill(255,20);
  noStroke();
  smooth();

for (float a = random(33); a < 300; a += random(23)) {
  for (float b = random(267,300); b > 1; b -= random(23)) {
  bezier(a, 300-b, 150, 50, 150, 200, 300-a, b);
   }
}