I still think Luna is the cutest Princess!
Spent about 5 hours in Inkscape.
Screencap used as reference: [link]
EDIT: For those who wish to use this vector you are free to, adding a credit/link back here on whatever you use it on would be most appreciated!
Luna: "Hello everypony. Did I miss anything?"
Me: "Oh I don't know. How about THE ENTIRE EPISODE."
Jaden: You were USELESS.
Luke: Jaden's right.
Jaden: You were useless!
Rosh: No problem.