If the chemistry is right between star and photographer and the geometry of the pictures pleases the star, often the two people end up with a long-term professional friendship during which they continue to work together and to produce highly personal images.

This phrase means that when a photographer and a star have a good relationship with each other and the outcome of the pictures taken is pleasing to the star, this can lead to a long lasting business relationship. Together they will create unique images that are personalized and special.