Showing is frankly a danger. Since they're not afraid of taking liberties, it would perhaps have been wiser to merely create a creepy setting and suggest. Take for instance the Reavers in
Firefly. They are scary, mostly because you never see them on screen, more than a few violent rapid blurry images. The rest is built up on the tales you hear of them, and the terror of the characters. Perhaps the same, in a otherworldly ethereal fashion (they are living cold, I think).
I found the representations bordering on ridiculous. The wights shouldn't be scarier than the Others.