A rhino filament painting / HueForge.
I used Prusa Galaxy black, PolyLite grey, Spectrum light grey and Geeetech white (all in PLA).
Start with Black
At layer #3 (0.32mm) swap to Gray
At layer #12 (1.04mm) swap to Gray
At layer #17 (1.44mm) swap to White for the rest.
(I have a commercial license, so it is legal)
The author marked this model as their own original creation.