The main difference between Greek and Roman art was the purpose the art was meant to serve; the Greeks had a great appreciation for aesthetic beauty and the philosophical theory behind it. Whereas Roman art was used to illustrate wealth and were more so decorative.
Well im not to sure who took the pic but i think it was taken to captrue the queser/waterfall wut ever it is, and its purpose was to show the ppl wut some might think is a beautiful sighting.