Primary images that demonstrates posture

I have taken pictures of a classmate in different poses. The poses in these four images show ways that the positioning of the body can show different emotions. furthermore it can also demonstrate how the posture can give characteristics.

 With the posture given here, his hands are clenched and his shoulders and arms are tensed. This gives the impression of anger and / or the impression of him giving fear to the person in front of him.

In this image he's head is  held high and his leg raised up. This can represent pride and bravery.

This image show his arms clenched and his upper body leaning forward. This gives the impression of a person in a fighting position. 

To improve on these pictures I can give the model to exaggerate the postures used since that will also exaggerate their characteristics.