I like the effort you went into for this animation and the level of detail you put into pixel art; very nice.
The one thing I would like to see is more exaggerated weight in the animation. She's using her wings to lift off the ground so maybe some more leaning forward of her upper torso as shes right now mostly just standing up straight as she moves and it feels less natural.
That aside, like I said, nice detail in the sprite and some good things going on in the wing frames.