Who creates art, and finds it to be artistic without having the intent to find the artistic quality in something. Take for instance pictures of the ocean during sunset. People of all types find this setting artistic, with the mixtures of colors and motion being captured in an image. Then there is nude statues. The nude person themself is not art, but capturing their likeness is. What about bondage art, the person being bound (depending on how it was done) isnt always art, but in how it is displayed is.
So yes, I say the intent of the display makes it art. Since the photo we saw had multipule photos pasted/blended into it. I believe the intent of the person doing that, was to make it art. For the skill required to do such a thing requires an eye for contrast and color to blend things to complement the main portion of the photo.
Again, to me, its art. Though art is like many things, one persons garbage is another persons treasure, and what one finds beautiful, another might find to be repulsive.