I actually used the creature’s natural/default colors, for once! Mostly, anyway. But in this case, I wanted to make the background a rainbow — which means all the other colors would blend in too much. It just _had_ to be a rainbow background, because unicorn, obvs.
The mane looks a little like fire, especially in the video. For the art image embedded in this post, I toned the red down a bit. Not entirely, though.
Here’s the unicorn painting video: