Based on the image below, Qiyana's pretty awesome -- her weapon and outfit and jewelry really sell her region's aesthetic, and her pose lets you know she barely has time to show you her disdain for you. The design team knocked most of this out of the park.
...but then we get to her hair. We have what *appears* to be the empress of a region that seems inspired by meso-american culture to at least some extent, and given how different that is from anything else we've seen in Runeterra it feels like a great opportunity to show us that by making a character whose hair and makeup styles reflect that cultural difference. Instead, we have another female character with white, flowing, slightly curled hair and a classical western tiara-style crown.
Now, I have nothing against that, but I feel it's a missed opportunity to tell us something about this new region. Compare to Illaoi, who sells her culture through her unusual earrings, makeup, and hairstyle, causing her face to very clearly reflect her character and her origin.
If we zoom in on Qiyana, we can basically call her a somewhat generic Runeterra woman. Probably a princess or a queen, sure, but for someone who is introducing a new region and is -- further -- the *leader* of said region, does this really live up to that representation?
Compare that to how unique taking inspiration from, say, any of this traditional Mayan (or African, or Egyptian, we there are some elements of those in the design as well) hairstyles would be -- and there are certainly more cultures you could pull from. She obviously needs a hairstyle that's unique to *her* culture and not a real-world culture, but I feel there's untapped ground here to showcase who she and her people are.