<canvas width="600" height="400">
</canvas>
<script>
var pantalla = document.querySelector("canvas");
var pincel = pantalla.getContext("2d");
//Cabeza
pincel.fillStyle = 'darkgreen';
pincel.fillRect(200, 50, 350 ,300);
//Ojos
pincel.fillStyle = 'black';
pincel.fillRect(250, 110, 90, 90);
pincel.fillRect(410, 110, 90, 90);
//Nariz
pincel.fillRect(340, 200, 70, 100);
//Boca
pincel.fillStyle = 'black';
pincel.fillRect(300,240,40,110);
pincel.fillRect(410,240,40,110);
</script>
