Welcome!
I would agree that there are many kinds of giftedness, not all of which can be captured on an IQ test. On this forum, we tend to use the term "gifted" in a narrow sense, referring to intellectual or academic giftedness. Many individuals identified in this way also have giftedness in other areas (art, music, athletics, social, etc.), but those other gifts are certainly not restricted to persons with intellectual gifts.
So whether you are or are not an intellectually gifted adult (the kind of gift that can more readily be measured on an IQ test) has little to do with whether you are an artistically gifted person. I would leave aside the results of IQ tests for you specifically, and focus more on the broader concept of giftedness, and, perhaps, the specific evidence of artistic gifts. Regardless of the labels that might be attached to you, you have value and gifts simply by being human, entrusted to you to add unique color, beauty, and joy to the community around you. Labels and even gifts mean very little if they are not used to enrich lives--yours and others'.
