According to this site
https://wolfcrow.com/notes-by-dr-optoglass-focal-lengths-of-the-human-eye/
The crop factor of the human eye is about 0.75, the focal length is between 21mm to 32mm.
This gif shows how focal length affects the shape of the human face. Also, if you want to know what you look like in other people's eyes, refer to the picture shoot with a camera with 20mm focal length.
According to this site https://wolfcrow.com/notes-by-dr-optoglass-focal-lengths-of-the-human-eye/ The crop factor of the human eye is about 0.75, the focal length is between 21mm to 32mm.
http://www.danvojtech.cz/blog/2016/07/amazing-how-focal-length-affect-shape-of-the-face/
This gif shows how focal length affects the shape of the human face. Also, if you want to know what you look like in other people's eyes, refer to the picture shoot with a camera with 20mm focal length.