Interesting question. I think that at her age, it is too early to tell which it is unless her drawing ability is already high compared to the average adult. I do recall drawing extremely well as a three-year-old. However, by age 4, when I started first grade, much of the energy/focus had shifted away from drawing even though that "advanced drawing ability" remained obvious for a number of years. I think that passion is a better measure. When I look at DD7, I see her advanced skills as more a function of artistic ability rather than general high intelligence mainly because art appears to be her default outlet. For example, when she is angry at me, she will draw elaborate pictures demonstrating why she is angry even though it would be quicker for her to write a note as she is articulate.