Hood for Partial Resin Mask

So I'm completely new to this without any experience. I recently purchased a Dragon Resin Mask in which to make something out of for a Ren Faire in this area. However, I have no idea how to make a hood to hide my entire head from the mask back, and possibly my shoulders? Are there any tips or tricks that anyone does to create this hood?

Remember, I have not done anything like this ever before so please bare with me.