A person that is extraordinarily small in size compared to their surroundings. Their small stature could be established against a humongous environment, or with normal sized characters.
If you can distinguish the gender of the small person, tag them as Minigirl or Miniboy.
Non-living Dolls aren't considered minipeople.
For a ordinary sized character and a miniperson in the same image, use Size Difference. If the larger character is holding the miniperson, use Holding Mini Person or In Palm.