In English the word "artificial" is used to imply that something is fake or false. The etymology of "artificial" does have to do with things being made rather than being natural, but the word vIqraq definitely focus more on the aesthetic value of something made rather than on the falseness of something made. Thus "artificial" does not seem to be a good synonym here.
I understand what you mean. But I often use "artificial" to mean man-made (wool, maple syrup, etc.). The Tips and Notes really do emphasize the "man-madeness" of a thing, rather than it's aesthetic value. I had considered, "made-by-hand", or, "man-made". Would one of those have worked better? (Klingon art appreciation is a little hard for me to wrap my mind around.)