Gorgeous, you have a beautiful style! She looks like she's floating across the sky.
As for critique, the wings are throwing me off a little. I can recommed a fantastic tutorial if you're interested in anatomically correct wings (
Click!), that tutorial has helped me immensely in understanding how bird wings are structured. But with this drawing I think taking it to a complete opposite direction would work nicely too, i.e. heavily stylised like G1 pony wings. Of course something in between works too, I believe that's what you were going for?
I think adding a "wing arm" to support the wings would help a lot, and maybe making some of the feathers a bit larger and wider.
Other than that I wouldn't change anything, she's lovely!
Your eye style is really pretty and I love the dotted highlights!