You can try using the AI Replace feature in YouCam Perfect. This feature allows you to replace your face with a skull face. Follow the steps below and try it yourself! Get the best app to turn yourself into a skeleton, YouCam Perfect.
Go to Photo Edit and select the photo you want to add the skeleton face filter to.
Click AI Replace in the tool bar, and paint over your face for replacement.
Type in "skeleton face" as your prompt.
Tap 'Replace' to see how the result turns out!