Of all the minor suggestions I made, the resource change I think would be the best addition. Animations, like you mentioned, would just be icing on the cake! (and also a deal breaker with regards to myself never needing another UI again)
I also agree about keeping the power on the player frame as well for good symmetry.
I think adding primary resources above the action bar for classes it works well with, and adjusting the action bar's size are the two things that I would personally love to see.
As for the texture, I'm happy to wait and see what you come up with after playing around with it a bit more
Thanks for the swift reply and keep up the awesome work!