The difference between fine art photography and commercial photography is very small but fundamental. It is about initial impulse.

When you work commercially assigned photography, your client gives the initial impulse to create. He also provides you with context and desired look and feel. When you take the commercially assigned photography job you lead the whole process, from beginning to the end, with the goal of getting the image in the way your client wants. That is the core value of the professional photographic service I provide for my clients.

Making fine art photography means the initial impulse comes from you, the photographer.
You feel the need to create an image of “something” you find interesting, and to try to communicate that “reason” with others who watch the image. As in commercial photography, you use all available photographic techniques to accomplish the final image that is closest possible to the first impulse vision.