Eyeballs. Great Halloween Decor. Be carful with bleeding into the the white while printing, you will see above i did have some bleeding. however this was filament specific,

I used sunlu fire engine red but when i did print again with bambu red and same settings and there was no bleeding. so know the filament your using and how much it bleeds.

Otherwise its 0.2 layer and whatever infill you like, but id recommend 5%