Pretty good cards. i am also making an mlp magic the gathering card set, only have 4 uploaded so far, but i am in the process of making more and i plan on posting them soon enough.
p.s: this is purely constructive criticism, but i dont really see how your twilight sparkle card suits her, and in my opinion(which is not worth much), not very good. also, if you have any criticism on my cards should you decide to check them out, do not hesitate to comment.