I believe the model needs supports. I printed on Creality Ender 5, with bed at 75, and extruder at 215. mine came out very warped, with holes all over the skull, and a couple long, deep, straight holes too. on my first attempt, the whole thing under the top teeth messed up, and It was a print fail. I am not sure why the jaw fell off, or why it has holes in it. if you know, pls send me an email.
The author remixed this model.