my 7 year old dd is in the process of being assessed for dyslexia as she's very behind in literacy & maths. However, cognitive tests have revealed she's far from stupid. Particularly she scored 98th percentile in visual spacial area, age equivalent 13! Her teacher says this explains why she's so good at art and excels in DT lessons. I'm not expert but she's clearly very arty and creative and is like lightning on the loom bands lol. She keeps saying she's going to be a fashion designer. From googling, I read that 98th percentile in a standardised test indicates G&T in that area. Would be lovely if that's true as she suffers from low self esteem due to being bottom of the class academically.
No knowledge about g&t, but my friend had a dd who struggled at school academically but I'm not sure if dyslexia was ever formally dx. She is now 18 and studying photography - she is amazing at that and the photos are so impressive! Maybe your dd just has a great talent on that side.