Kurama in his Tailed Beast Mode from the manga/anime Naruto Shippuden. This was a bit of a tough one to get down, but hopefully it works fine for the most part. Sometimes the black lines on his body won't generate properly, but the other than that it should get the look down pretty well. Just don't expect the AI to pick up 9 tails every single time lol.
Positive Prompts: TBMKurama, male fox, anthro, 9 tails, yellow body, glowing body, yellow eyes, no pupils, sharp teeth
Extra eye colors: white eyes, red eyes
Bonus: glowing eyes
You can remove "anthro" and replace it with "feral" if you want