Step 3: Padding the face
Scrunch some kitchen roll into tubes and shapes into bulk. Once you are happy with the position of these shapes then glue them down.
Add some cheeks to the mask, again this is just a scrunched up ball of kitchen roll which is shaped and positioned and finally glued into place.
The nose is more kitchen roll, as an afterthought I would probally use some small hoops on either side of the nose to form the nostril shape (again sorry no picture)
I wish there was more I could say about this step but there isn't. It's very simple. Just add kitchen roll to build up the face in the places you desire it.