Skeleton face paint is one idea. 🤔 you could do something mythological. Maybe Athena or Artemis...

https://i.poastcdn.org/9849b27d24e459122ea9aebc555d96b429890ca5eeb4dd788e62e53748df6d0c.jpg

https://i.poastcdn.org/4995b1e36d981b0a8f946c4f93b1efee6a698d807c034971a73eb973c82430c7.jpg