drawAllClouds(20, 5);

function drawAllClouds(size, amount){
  for (var i = 0; i < amount; i++) {
    drawCloud(randomNumber(size, size + 5));
  }
}
function drawCloud(size){
  moveTo(randomNumber(0,400), randomNumber(8,214));
  penDown();
  penRGB(255,255,255,1);
  dot(size);
  for(var i=0; i<2; i++){
    turnTo(315);
    moveForward(size);
    dot(size);
    turnLeft(90);
    moveForward(size);
    dot(size);
    penUp();
  }
}