Monster X from the Godzilla movie Godzilla: Final Wars. This was a bit of a challenge to do and I didn't have a lot to work with, so please keep in mind that the generations on this model might not always look accurate to the character. It may have issues with the tail and generating more of its shoulder skull heads. Other than that, it'll nail the character mostly ok. All the images featured are the best results I was able to pull out and I'm not going to spend too much on my buzz landing the perfect generated image lol.

Positive Prompts: MXGZ, anthro, alien, monster, kaiju, horn, spikes, bone, red eyes, no pupils, black body, white body, two tone body

Extra: glowing eyes

If the tail isn't generating accurately, then try putting in "forked tail" and it'll probably help