I'm pretty sure that they are also called secondary colors, Hope this helps :)
Answer:
For question 2, yes it does look correctly proportioned.
For question 1, I am not completely sure on, but it does look like it could be representing strength/power.
Sad he is mostly sad but its kinda like a teen moment where all emotions come together
Answer:
it is about the importantance of drive and forces dealing with human fuctioning and i would say cognitive behavior
Explanation: