Yeah, it's all down to camera angles. A lot of HT heads look to be sculpted from scene specific reference, unless you get the camera at exactly the same angle as the particular scene in the movie, the likeness isn't there, at least that's how it can appear. HT can often use different lenses for their promo shots, which can also throw off the likeness. The Birds of Prey one is a prime example, thanks to the lens used, there's a fish eye effect, which makes her nose look too big.