Cold Light - Character design + art style exercise

This was a small assignment for school that I worked way too hard on for the fun of it. Design a character from a prompt, then draw it in four different art styles.

A lonely child born in a world of bitter cold and ice. Left behind with them is a single scarf made by their mother, but it contains more than just warm memories - a fire spirit that tags along on their journey to find out why the world is so cold.