First off: I love the Drakthyr, and I love the concept of Evokers. I liked the reveal all around.
My only complaint is the visages: why are female Drakthyr limited to female humans and male Drakthyr limited to male elves?
We have various examples of dragons masquerading as various races: we have Chromie, we have Ebonhorn. There's speculation that Cho, or at least one of his ancestors may have been a dragon, as his family tree in that one Horde quest has a few of his ancestors wearing Bronze Dragonflight tabards.
While I understand that applying those cosmetics to all races would've been a MASSIVE undertaking, it still would've been cool to have more choice in the matter. Perhaps just the core races at the very least.
Thoughts?