The body has one or more transparent windows to showcase things significant to the character.
The face of the body has been replaced with a mask, usually of a different material than the rest of the body.
The body is An Orb.
(or simiar small object)
The soul mark has a simple, two-dimensional pattern on it.
The soul mark has a sparkly, shining appearance to it.
The soul mark is made up of any kind of food. Drinks and Non-solid foods take on the Foodie soul mark type rather than the Elemental type.
The soul mark(s) take the form of horns on the head of the character.
The soul mark covers/consists of the torso of the character.