Her waist appears to be halfway up her ribcage (this may or may not be normal, but it doesn’t look right), and her legs seem to be short. One or both of these might be caused by foreshortening effects caused by both cameras or the way she’s stood.

The wig is also enormous compared to her face, which suggests it’s about half as large again as that hairstyle would be if natural, which also throws off proportions.

They know their costume is poorly made, but it’s cheaper to get a model with a very particular body type to model it, than it is to fix the product.