<canvas width="600" height="400"></canvas>
<script>
var tela = document.querySelector("canvas");
var pincel = tela.getContext("2d");
pincel.fillStyle = "darkgreen";
pincel.fillRect(0,0,350,300);
pincel.fillStyle = "black";
pincel.fillRect(50,50,90,90);
pincel.fillRect(210,50,90,90);
pincel.fillRect(140,140,70,100);
pincel.fillRect(100,190,40,110);
pincel.fillRect(210,190,40,110);
//Quadrado dos olhos
pincel.fillStyle = "white";
pincel.fillRect(90,90,10,10);
pincel.fillRect(250,90,10,10);
pincel.fill();
</script>