She looks great standing so proud, showing in stance and especially that lovely face. Great work on the eye details. She's a bit more cartoony when she's stretched like this yet you've done a lovely job on the finer details too, like her feathers, horn, nicer shoes, etc. I wonder if she's meant to be a little shy too because of her tail being curled up a bit underneath her, but I'm not an expert on alicorn body language.
If she's a bit shiny it could just be a little too much product in her coat, but it helps catch the light nicely.