let a=0;
let x=0;
let y=0;
let r=100;
function setup(){
createCanvas(500,500);
background(100);
colorMode(HSB,270,350,20);
}
function draw(){
r=random(80,100);
a+=20;
y=r*sin(radians(a))+150;
x=r*cos(radians(a))+180;
fill(random(290),250,220)
ellipse(x,y,50,50);
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/p5.js/1.1.9/p5.min.js"></script>