Another photo I textured is a milkweed pod seen in my last post. I have always liked the delicate texture of these late pods when they are open. The first image is the original. I feel the textured background enhances the beauty of these structures and make it a stronger image.
The question as to whether photography is art I will leave to you. I will have to paraphrase the old cliche that beauty is in the eye of the beholder. The beauty of a photograph is also in the beholders eye.