There is no cast iron law that a photograph has to be realistic. The first image is a painting which I made from a photo of the Taj Mahal. As a painting, nobody would question its abstract style, so there is no reason why the camera and the computer cannot also be used to abstract from reality.
“… the tides visiting and revisiting the friths, the main sea dashing against the bolder shore, the rivers pursuing their course to be lost in the mighty mass of waters. … the winds sweeping over the lakes, or piping with a loud voice among the mountain peaks; and, lastly, … the primaeval woods shedding and renewing their leaves with no human eye to notice, or human heart to regret or welcome the change.” Wordsworth’s Guide to the Lakes, 1906.