They are referred to as neutral colours.
Answer: by using many references, and by practicing, also practice realistic art to understand how things look and how to really understand the fundamentals of it~<3(realism art doesn’t apply if you are already doing it)
Answer:
What is the Rule of Thirds? The Rule of Thirds is a general guideline for how to create an interesting composition which states that any image—painting, photograph, graphic design—should be broken into a grid with two vertical and two horizontal lines, creating nine equally proportioned boxes.
Explanation: