In playcanvas ARfilter

I want to create an AR filter using faceEffect in playcanvas. The sample had the material applied to the face, but I want the face to track the ear and nose images.
How can I make this happen

Could you share a bit more about what you’re aiming to achieve? Are you trying to create an effect that appears specifically over the nose and ears?

Yes.
For example, an image with only the nose and ears of a dog cropped out would be attached to the nose and head of a human when the camera is pointed at it.
Also, I found out that there is an 8th wall Niantic Studio, so I think I will develop it there.
Other questions.
When I create UI elements on the same coordinates, they don’t overlap, they are shifted next to each other.