The colors look much better in real life because RedBubble tends to mess up the colors in previews. The vector has a small white outline, so any color or style will look great (to my knowledge).
Alternate version without text here
If you want to download or see the vector (without the messed up colors), go here
The vector is released by under the CC BY 3.0 license
In layman’s terms: Do anything you want with it, as long as you credit me (teiptr).
My Little Pony: Friendship is Magic is owned by Hasbro.