Yea, the focal length of the camera can easily change how large features look. The image you are using vs the photos of the statue could be at different distances and focal lenths so it's not a good way to make those comparisons. you would need exact images of Gal and the statue taken in the same situation to match focal length distortion which will never happen. So making that comparison as you just did will ALWAYS be inaccurate. I think they did a pretty slam dunk job on this piece but there will always be discrepancies between a real life person and a statue...no way around that unless you literally use photogrammetry to scan Gal from head to toe in the pose they want.