Look at the closeup photo (I’m sure you have). There appears to be two “pearls” in her ear, or she has a growth there. There is a definite circular edge which is lighter in tone than the inside of her ear. If it were an oily ear, there wouldn’t be two shiny spots there but maybe a streak. Anyway, the highlight is convex and not concave.
I watched this video https://www.youtube.com/watch?v=rDTPsnjD-FQ with the sound off and I focused on her left ear. At any point of interest I stepped frame by frame, for example at 3:30. I think it’s just shine. YMMV