The archetype body for a cute character will be basically the same, even when the characters are different cute characters. This universal body shape often includes big heads, small bodies and arms, and legs.
Certain character types will be less similar between genders, but because the cute character takes its features from children's features, these characters are quite similar regardless of gender. They represent a time in life before the body fully matures into an adult or adolescent form, and thus gives it the "cute" appearance. So as you will see, you can use these basic principles to create a boy, girl or animal characters.
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