Headscratchers / Abominable

What is up with Yi's feet/shoes? (Dreamworks film)

While there are a lot of different body shapes and sizes for the characters, they're all still pretty proportional overall. Yet Yi's shoes seem almost like they are inflated, with her calves being much bigger around than Jin, yet the area in front where her toes would be is surprisingly short; and Yi is the only character that has this particular body shape.