I didn't have much to go off of here, so I looked into Shiver's social media. Much of her stuff is what you'd expect from your run of the mill SFW amateur social media artist, but some of their more recent stuff seems pretty high quality. A bit of variety mixed in there too.

There's some sense of development there. Is nice.

Hi there, I'm the creator of this character Shivers. As hard as it is for me to be polite right now, I would like to ask that you please take this down. I don't appreciate having an AI model of my fursona, especially with NSFW themes attached to her. She's essentially me, and I am strictly a SFW individual. I would genuinely appreciate an immediate takedown of this, thank you.