My version is slightly different to the file that I have uploaded here. I attempted to have a gap between the teeth which didn't work. In the file uploaded here the mouth is just the solid colour.
I've uploaded a pre-sliced version that is very detailed and is going end up with a lot of waste, probably not the best idea but it will give you some idea of the filament that will be used.
There will be roughly 1000 tool changes, which means you will want your MMU to be working correctly so that you don't have to baby sit it.
The colour order is:
The author remixed this model.