Challenge Accepted: Day 4

Do you know how much I hate rainbow hair?

So this is my friend as a unicorn. She's a very bright person but kind of scary if you get on her bad side.

About the "cutie mark"... While the artist's description gives permission for me to use, the original artist for it has not given me full permission to remove the background of it (which would have been a white box). I asked them and they have yet to reply. If they answer my request with a no, I will remove this image, fix it with a different cutie mark, and re-upload.

The original artist for the "Dying Heart" is