Thin area bellow the crown in harsh lighting? Wtf

[Liqurt]

My crown isn’t really thinning but right bellow the crown if I go under direct lighting in that vid there’s a thin area? Is this MBP wtf is this

again this is BELLOW my crown

slow down the vid and you can see the thin spot bellow the crown. In the pics is my actual crown

the vid is the part I’m talking about. Which is bellow the crown

the pics are my actual crown