Each has a token, portrait and standup (3D) image. The top-down token and standup images (for the 3Dview) are found in Assets Tokens and the portrait images are found in Assets Portraits. These include images for the following:

Skeleton

Skeleton Archer

Flaming Skeleton

Flameskull

Male Zombie

Female Zombie

Zombie Soldier

Skeleton Minotaur

Charging Skeleton Minotaur

Skeleton Dark *New

Skeleton Greataxe *New

Skeleton Greatsword *New

Skeleton Sword (x2) *New

Zombie King *New

Zombie Queen *New

Zombie Ogre Greatclub *New

Zombie Wizard Female *New