I'm also wondering about that artsy/poetry angle of the test. I suspect it's a case of failure to detect, so a type 2 error.
Once upon a time, a group of scientists that included me went to a conference that left a free afternoon for visiting
The Mall, a row of free museums in Washington DC. The rest of the group practically had to pry me away from the
National Air and Space Museum after spending three hours looking at the fine lines of various flying engines. Then we went across the street to the
National Gallery of Art in which I lasted about 15 minutes before I escaped and spent the next two hours browsing the sanctuary of a nearby bookstore while the rest of them finished up.
This leaves the question ... is the test strictly asking for one's appreciation of dadaism, romanticism ... or does it leave room for appreciating the lines of a
Spitfire or the Saturn V rocket?
Same with poetry ... I don't get poetry and I think most poetry is an exercise in obfuscation, like some secret code language that I never bothered to learn... but I do appreciate beautiful code, which I
can read. Where does that leave me?
This, in a nutshell, is why internet/computer tests are somewhat dubious if you, as the test-taker, don't know the intention of the test-maker.
Add: Other thing is that this test gives you the percentile of your age, gender, and country association. This is useful because now you know if you're an outlier or whether you're just like everybody else. I dunno if those numbers are contingent on the entire population or the sample population of those who search for and take OCEAN tests on the interwebs.