I really like this. The colors look pretty good and I think they fit this scene. The only problems i see in this is a little bit with how the legs are coordinated but all in all its looking really good. I can tell you worked hard on this. I also like the style a bunch and you should certainly continue useing this style with other drawings/paintings related to this sort of idea. Although i'm no proffesional I'd say this is really good and keep up the good work! Oh also i just wanted to point out a few more things. The shadowing looks perfect and in order. I think it wouldve appeared a little bit better if you had the tail outside of the dress but hey thats me. one more thing then im down, if shes jumping off of something then this is the perfect pose but for future reference if shes flying she should be in more of a superman pose and mabye show some movement with the wings. you can even go as far as haveing her standing at the end of a large cliff looking over ponyville with the wind blowing through her hair if you want to retain an outlook kind of like this. Keep up the good work!
A calming piece. One that says everything is alright. The bustle of the city below may distract from the relaxing breeze just a few feet above, but you need only climb a short distance to get perspective on things.