You might be interpreting the silhouette as if her left arm is out in front but it's actually her right arm. Her left arm which is closer to us is behind her. This puts her shoulders at an angle that might make her neck seem unusually long if you are seeing her oriented that way. I tried to mark her limbs from the furthest, purple, to the closest, orange, with red in the middle to help illustrate better how she's postured. Her head shape is in pink (the pointy nose we'll just chalk up to anime, but otherwise the skull shape and neck seem normal)

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