This is a simple tweak of the original file. It is the T-Rex Skull but I ran the files through MeshLab and reduced the polygon counts to between 500-1000 to create the Lowpoly-Rex while still retaining the basic necessary details.
This was printed at 0.15mm layer height and 10% infill with Gold and White PLA on my MakerGear M2. Printed at 50% scale and shown compared to the original file. Printed without supports.