Oh this little cutie. This little cutie right here.
She's a practically ancient character of mine- I first made her up as kind of a joke on sparkledogs/emo dogs/that whole design era. I made her atrociously rainbow and over the top on purpose, then used her for color testing. When I got a new program or medium I'd use her to test out how it worked, since she had a huge variety of colors. And I just came to realize she was technically my very first anthro character!

Older references here, and here