The main adjustments I made were making the sclera of the eyes whiter, making the smile a little more clear, adding a little more contrast to the eyes, and brightening her coat up a little more. A more minor change was lengthening the eyelashes just a bit.I think the major thing that made her face a little bit offsetting was how dark the sclera was. It makes the face feel a bit hollow when it's that dark.And next to that, the smile doesn't feel particularly "happy". Though if you weren't actually going for a happy feel, I'd still say to try making the mouth more clear.As for eyes, I don't think you're doing anything particularly wrong with them, though I do think making the pupils darker would help bring them out more.Besides the face, the coat as a whole feels kind of dull in color, so brightening that/adding some life could definitely help.Anyways, I still think the piece as a whole is done quite nicely! You're certainly very good with details, and those wings are beautiful especially. These changes I suggested are just quick ones, but they can make a big difference ^^