<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);
//Ojo izquierdo
pincel.fillStyle = "black";
pincel.fillRect(250, 110, 90, 90);
//Ojo Derecho
pincel.fillStyle = "black";
pincel.fillRect(410, 110, 90, 90);
//Nariz
pincel.fill = "black"
pincel.fillRect(340, 200, 70, 100)
//Bibote izq
pincel.fillStyle = "black";
pincel.fillRect(300, 240, 40, 110);
//Bibote Derecho
pincel.fillStyle = "black";
pincel.fillRect(410, 240, 40, 110);
</script>