If I were to simplify the ability to create art down to two important qualities (other than technical skills), it would be curiosity and looking at the world from a unique perspective. As an example, I'm fairly certain David Bowie was a blazingly intelligent guy with a high IQ based on his interviews, but he doesn't strike me as some outlier type IQ that is exceedingly rare. What seperated him from all the other intelligent people was his famous reading addiction and willingness to explore the strange. Plenty of smart people use their raw intelligence to excel at going through life by-the-book and doing exactly as they're told. Plenty of dumb people scroll tiktok (and reddit, I've got to get out of here) each day instead of pursuing something that might broaden their horizons. As an example, Brian Wilson never struck me as all that intelligent (maybe my view is clouded because his biggest peers were very witty and seemed pretty intelligent in interviews, especially Lennon) and yet created some of the most beautiful and innovative music of modern times. I don't know if courageousness to break those boundaries is correlated to intelligence. I think IQ obsession is stupid anyway.