/diy/ - Do It Yourself

Hello.
I want to make the mask from Zelda, Majoras Mask (Pic related) in wood. I don't have much experience with woodwork, but I don't think it will be a problem if I paint on the smaller details with a small brush.

I have a friend who works as a furniture carpenter, and she told me she could cut out the basic shape of the mask from a piece of wood for close to no cost at all. For this, she needs a proper drawing with measures she can use. After attempting something with GIMP, I realised it wouldn't work since my printer only prints A4 paper, and the mask needs at least A3. I settled on drawing it by hand. I got a compass tool and started with some basic shapes, but i can't seem to get the correct curves. Can anyone help me with this? It doesn't have to be exact, I can change the shape a bit by hand, but I need to have a correct basic shape, to get it as symmetrical as possible. Only a small tutorial on how to use the compass tool is necessary.