@Virgil Nope. There was a specific base that I had to use but to be "original" I had to redraw it all over again. Then I had to get the exact colors of Rainbow Dash (which was more difficult than you think), add the details, color it in, and add the blood. Finally I had to do a little shadowing (plus the grey shadowing at the bottom), and draw the "Rainbow" Factory into it.
WHY DO YOU THINK THE TAIL LOOKS SO STUPID?! XD