nice scan of a human skull. You can choose to print the skull in 3 parts and the jaw in 2 parts, print the skull in 1 piece and the jaw seperatly or print all at once.
First try: i printed the skull in 3 parts to make it an easy(er) print but this way you see some transition lines between the peaces afther gluwing.
Try 2 (see pics): much better but not for a beginner! I printed with buildplate support only. man, what a nightmare to get all the supports off!!!! Better would be to use dual extrusion with PVA-support.
There is also a file to print the skull with the jaw attached but i think this is impossible without using PVA.
Anyway, the RESULT IS FANTASTIC!!!!!

Print instructions

I printed with folowing settings:
Nozzle 0.4 standard nozzle
0.15 Quality + layer edditing on the dome + support from the buildplate only.
Filament: Fillamentum PLA "light ivory"