It depends on what type of mad reaction you're looking for. you could;
1. Clench your fists and maybe stomp your foot if you're looking for an exaggerated, maybe even comical display of anger
2. turn away slightly and grab your head/hair in a slightly hysterical anger
3. Shake your fist at them
4. Cross your arms over your chest
Or some combination of those things, I hope that gives you some ideas!
Well art is a way to express your self so if people are critiques about it then they may not understand it. So if I were in there shoes I'd feel kinda wouldn't care because it's my artwork about my emotions :) hope I helped ya
The Inca Empire was a vast region extending over 2500 miles along the mountains/ coast of South America. It extended through present day Ecuador, Peru, Chile and small regions of surrounding countries.