So you would define art based on your specific level of skill. Like you I could create a verbatim copy of Equivalent VIII quite easily, but I could also make a copy of Shakespeare's Sonnet 18 pretty quickly too. In fact, since I just Googled it, I could do it in seconds. Which do you think is the greater work of art?
In my opinion, the important thing is the act of creativity, the execution is secondary. Modern art shifts the emphasis away from the execution and more towards the idea.
This is a subjective measure for me personally, something else may work for you.
Essentially, if I could recreate it, then it's not art, because I am not an artist.
This DOES NOT apply to copying text, as that is a basic skill.
This works for creating the Haywain etc, as compared to laying a pile of bricks, or an unmade bed.