Face of my figure

Hello everyone, I have a model similar to the one in the picture, namely the head of a character. Printing it is not a problem, but I have no idea how to draw the face.

The eyes and mouth need to be sharp and geometric and I can't do it by hand. I was thinking of having it printed at the print shop with the same machines they use to print on water bottles, mugs and pens, but I don't know if it will work.

Do you guys have any other ideas?