I think it is a special mask called Tankolak. He is involved in a long quarrel with Shiva's mount Nandi, so that distracted him. It is Nandi's fault, btw, he is always looking at the little guy in a taunting way, trying to pick a fight. I'll see if I can take a photo of the two tomorrow, it is getting dark again.
Not that I thought you were showing us a warrior holding a head for Christmas, but you are very naughty and I wouldn't put anything past you.