What is the mechanism of the brain that looks real? [Illustration making]

What's happening in the brain when the picture looks real?
I will explain with how the illustrations are made.
The keywords are "illusion" and "amount of information". Please watch it till the end.
A cute customer is drawn in the completed picture to be shown at the end!
The completed pictures are posted on the following SNS.
Please see high resolution still images on each SNS!
◆ Twitter
/ tainosuke14
◆ Behance
www.behance.ne...
◆ Pixiv
www.pixiv.net/...
◆ Instagram
/ tainosuke.fish_art
Music / 369 Musiq
www.369musiq.co...
Music / Dova-Syndorome
dova-s.jp
Music / Otologic
otologic.jp/
Sound effect / Sound effect lab
soundeffect-la...
Sound effect / On-Jin
on-jin.com/
If you have any questions about work or collaboration, please click here.
[e-mail]
#illustration
#illustration making
#Reproduction
#drew
#Real
#sweets