The ears...

[Naaramare]

Since elves and men inhabit genetically identical bodies (otherwise birth of Luthien would have been impossible), therefore there are {b]no[/b] pointy or any other shape of ears involved with elves. They look exactly the same as humans.

That's not a given. Look at the superficial genetic variety among humans and the very real feature difference between, say, Caucasians and First Nations people, let alone Caucasians and Blacks, for example.

Just because they were genetically similar enough to bear offspring--thus, technically the same species--does not mean that there mightn't have been cosmetic differences . . . like pointed ears.

Besides which, Luthien was half-Ainu, not half-human.