My fifth Twilight Sparkle, vector.

Overall I believe that you've made a really good vector however there are a few mistakes that you should fix.

1. this one is consistent in a lot of your vectors you keep leaving the eyebrow tip as a but however it should end in a miter.
2.you missed an eyelash on the left eye from our perspective
3. this is also partly a question, did you just flip her tail upside down? cause it does appear to be bending the correct way.
4. you may need to find a better cutie mark vector the stars down the bottom are a bit elongated.
and last thing i will note the tongue normally ends slightly outside the red part of the mouth.

hope this helps you to improve

Your Faithful Critiquer
KnightTeutonic