There are two men, let's say John and Mike, saw a woman sitting in a lawn chair. She had a square face shape, thin lips, sharp nose and thick eyebrows. Then there was a conversation between John and Mike;
John: "Mike, do you think her face is beautiful?"
Mike: "Yes, because She has a square face shape and thin lips..."
John: "You're right Mike, She was beautiful. But not for her square face shape and thin lips, but because of her thick eyebrows and sharp nose..."
The conversation provides an illustration of how subjective and complex, related to the matter of woman's beautiful face. Maybe Mike thought that a square shape symbolizes steadfastness, but instead John thinks that a square shape indicates inflexible attitudes.
So when they chew over woman's beautiful face, arises the cognitive processes that lead them to so many things, or let's say the variables that have direct or indirect linkage. If it does happen similarity of thought between them, it is to those aspects that are fundamental, universal, and true or very logical. For example: the woman has a very clean facial skin. Simple, logical flow of a very clean facial skin to a beautiful face is, cleanliness of an object (face) is unsightly eye. This is synonymous with Clean is Beautiful. And this is a fact that it really makes sense for any human.
And the process of John and Mike in interpreting or perceiving the woman's beautiful face is defined by Wikipedia as Face Perception. In full:
Face perception is the process by which the brain and mind understand and interpret the face, particularly the human face.
The human face's proportions and expressions are important to identify origin, emotional tendencies, health qualities, and some social information. From birth, faces are important in the individual's social interaction. Face perceptions are very complex as the face expressions involve vast involvement of areas in the brain.
From Wikipedia definition above, read and understand carefully at the words in italics and bold, namely:
1. Human face's proportions
2. Human face's expressions
3. Involve vast involvement of areas in the brain.
The above three factors that caused why do people interpret or perceive woman beautiful face differently or why woman beautiful face is a highly subjective matter, particularly is the third factor. So when interpreting or perceiving a woman beautiful face, it is a thought process which must involve the EQ and IQ.
Furthermore, Where is actually part of the human brain, which are specifically implement the process?. This part is called: Fusiform Face Area. As Wikipedia defines:
The fusiform face area (FFA) is a part of the human visual system which might be specialized for facial recognition, although there is some evidence that it also processes categorical information about other objects, particularly familiar ones. The FFA is located in the ventral stream on the ventral surface of the temporal lobe on the fusiform gyrus.
|Fusiform face area, the origin of Why do people interpret woman beautiful face differently (yellow arrow). Image Attributions: Hagmann P, Cammoun L, Gigandet X, Meuli R, Honey CJ, et al.|
Associated to the third factor; Involve vast involvement of areas in the brain, one of the most vital functions of human brain is as an organ for storage of memory. All human activities, both think and act will be remembered in the brain, in which, will be influenced by (local) factors such as environment, culture, customs, education and much much more. Therefore, for instance, an American will perceive woman's beautiful face differently with perceptions of an Asian, European, African and Australian, and vice versa.
Image source: Medial surface of cerebral cortex - fusiform gyrus on Wikimedia. Attributions: Hagmann P, Cammoun L, Gigandet X, Meuli R, Honey CJ, et al.