The smell of a girl's breasts, the smell of her feet, and the smell of her pussy are all different. There are similarities, but there are differences. Another girl is different.
The smell is not something that exudes from within the body, but the difference in bacteria that each part has. It depends on the girl's life and way of life. If you live in Japan, you can smell Japan. I'm sure it will vary by region. The girl's hormones are probably related to which bacteria are actively breeding. Therefore, the physical condition of the girl and the situation such as mood are also related.
That is what is called individuality or vernacular.
I have a smell fetish, so I understand.