Hi there !
Well,
Truth is you're not the one deciding wether you're doing fine art photography, or not, even if you mark everywhere " i'm an artist ".
Nor your closest friends, nor the general public.
The art professionals, the artists, the gallerists, the collectors, the buyers and art public will decide for you.
In order for them to decide, you must show your work. With time, it may or not be remarked by these people, and also you can push your work to them.
Once you're on the market, if they decide to put you on, then you're doing fine art photography.
So, just don't be shy, but be generous, show your work, as generosity will always be appreciated by the public and it's one of the artists' greatest value. With time, the more people you'll reach, the more you can bring them as a "plus" in life, the more you'll go forward