Ok folks... the verdict is out. You'll have to stop calling Ann big-head.
As I suspected, it's the hairstyle...
And for fun...
Sir, I reject your analysis!
While the overall proportions should be representative, I feel it's a mistake to use the height ratios for comparison, as it's the relative
width that gives bobblehead her signature look.
The measurements are at widest part of head, middle of shoulder, and torso below bust. The percentages reflect the width ratios for each figure, with the reference pictures of a child and adult in the lower left, and a stock G8F figure in the lower right.
As you can see, while the stock G8F exceeds both width proportions of the reference shapes, Bobblehead here exceeds the reference photo adult female proportions by 60% (head:shoulder) and 42% (head:torso)!
Thus, I can confidently state Ann has a ginormous cantaloupe of a noggin.