I believe to get a 99% composite on the CogAT you have to have fairly high scores in all 3 subsections - so your daughter is likely to have many strengths. It sounds as though she is consistently showing strength in the nonverbal/possibly visual-spatial areas, and is drawn to artistic pursuits. She is so fortunate to have both academic strengths (ITBS) and a potential artistic outlet, as well!
My DD8 also had a 99% CogAT composite, with her greatest strength in the verbal area, followed closely by the nonverbal area. On the abbreviated Wechsler test, however, my DD's perceptual reasoning score was actually higher than her verbal reasoning score (both were high). So at least your DD is more consistent! LOL!
I've always thought of my DD as both quite verbal, as well as a visual-spatial thinker. My DD loves to read and has been drawn to science. She also loves to draw and create art.
I think one of the toughest things about being both bright and artistic is that many well-intentioned adults may wish to steer your DD to think of art only as a hobby. They may want to tell her to focus on her purely academic strengths, without regard to her artistic interests. Your DD already sounds passionate about the visual arts (and the science of it, too! Impressive in such a young child!). To be happy and reach her potential, your DD probably needs to nurture ALL of these strengths - no small task!
You may find that your daughter excels in geometry, art, science, sculpture, architecture, engineering - so many fields! It sounds like you also may have a budding author/illustrator on your hands. At this age, your DD should enjoy finding her passions!
