The pictures show the scan printed in yellow Ultimachine PLA.
Print temp (extruder): 210
Layer height: .25mm
If you are using PLA on a Replicator, print using the default settings (with the modifications stated above) without acceleration. Although it makes for a very long print, I found that the layers on the top of the skull came out better (were more uniform) if I printed at the Replicator default speeds.
UPDATE: I find that printing this with 13% infill and three extra shells works well when printing this at larger sizes. You may want to reduce the number of shells if printing it a very small scale.