Question for artists or designers - how do you draw (not layouts)?

Question

Design

Question for designers who draw characters / beautiful art / beautiful backgrounds for the site.
You are told to draw me a couple of game characters in the style of Game of Thrones. You take a pencil and a picture appears in your head of what the face, eyes will look like? What is the thickness of the hand to draw? What color to choose for hair and so on?
After all, the body is not in the tool, but in the brain ...
At least for a year I will draw in the illustrator, in the end it will turn out that in kindergarten, that now the same thing happens.

Yes, the lines will be better, but I won’t even have an idea that there should be such a bend in that place, and there such a color.
How do you do it?

Answer 1

They draw, or rather “write in numbers”, narrow-profile thematic illustrators who have an academician and “hands in hands”. A sense of style, a Wacom Cintiq graphic tablet screen and special thin programs like Corel Painter, PaintTool SAI and the like.