Anatomy is important to focus on when drawing humanoid characters to ensure the proportions are correct. There are two main ways of drawing humanoid characters: structure drawing, which focuses on the anatomy of the character and clearly showing their features and details; and gesture drawing, which focuses on showing the character’s emotion.
This is an example of a structure drawing. The proportions are mostly correct, but the character is quite slanted, especially the legs. This uses the 8 head method – based on the fact that the average human is about 7-8 heads tall – which is helpful for getting the proportion of the body accurate.