LOL can't believe you fell to this meme
1.Realistic drawing is a left brain activity.
2.Drawing on the right side of the brain would results in complete trash modern art with no fundies
3. Right side of the brain is used for design and composition
this is why many people who have shit right of the brain can draw really good but cant design for shit so they become art instructors
tl;dr art is like math. This is why you can recreate its rules with 3d engines