<script>
var tela = document.querySelector('canvas');
var pincel = tela.getContext('2d');
//cabeca
pincel.fillStyle = 'darkgreen';
pincel.fillRect(125, 50, 350, 300);
//olhos
pincel.fillStyle = 'black';
pincel.fillRect(180,110, 90, 90);
pincel.fillRect(340,110, 90, 90);
//nariz
pincel.fillRect(270, 200, 70, 100);
//mouth or beard
pincel.fillRect(250, 240, 40, 110);
pincel.fillRect(320, 240, 40, 110);
</script>