They say knowledge is power.

I would think all the top Artist are aware of all this.

 

golden mean or golden ratio _ google

there's google n you tube to search all this as much as you want.
I only pay attention to the Art part of them.some links will wonder off to none Artist materials.

 

golden mask _ google

http://www.beautyanalysis.com/

http://www.goldennumber.net/beauty/

you can google ,you tube how to apply good make up

 

**Human anatomy
** schools would have you learn all the names of the muscles & bones
I can't even pronounce half of them .LOL.

 

composition _
https://fstoppers.com/architecture/ultimate-guide-composition-part-one-just-say-nokeh-31359

 

color _

https://www.youtube.com/watch?v=Qj1FK8n7WgY

 

 

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The Artist that will fight for decades to conquer their media.
Even if you never know their name ,your know their Art.
Dark Sphere Mage Vengeance