<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<style>
canvas{
border: 5px solid black;
}
</style>
<canvas width="600px", height="400px",id="canvas">
</canvas>
<script>
var pantalla=document.querySelector("canvas");
var pincel = pantalla.getContext("2d");
//FORMA CABEZA
pincel.fillStyle = "darkgreen"; //propiedad
pincel.fillRect(125,50,350,300); //funcion
//FORMA OJO1
pincel.fillStyle = "black";
pincel.fillRect(175,100,90,90);
//FORMA OJO2
pincel.fillStyle = "black";
pincel.fillRect(335,100,90,90);
//FORMA NARIZ
pincel.fillStyle = "black";
pincel.fillRect(265,190,70,100);
//FORMA BOCA1
pincel.fillStyle = "black";
pincel.fillRect(225,240,40,110);
//FORMA BOCA2
pincel.fillStyle = "black";
pincel.fillRect(335,240,40,110);
pincel.fillStyle = "black";
</script>
</body>
</html>