The animation isn't that good, but it shows so much potential! You have all the right keyframes, all it needs to make it better are smoother tween frames and some more dynamic movement.
The style is absolutely great! It's similar to the DC Animated style they currently have (i.e. the movies and Young Justice especially) which I adore! But... work on your female form! Face was great, but her body was kinda... eh? For one, the breasts were too high up. A common mistake, I did it many times too. Just takes a bit of practice.
Anyway, I hope the best for you and this series. I'm certainly going to stick around to see where you take this.