This model is awesome! Great idea! I took some liberties and cut the back portion off, making it a bit easier to print. Looks amazing! Printed the Autobots in Bambu Metal Blue. Printed the Decepticons in Polyterra Red/Black Dual PLA. If using a dual color filament (well worth it, if you have some), set the top surface finish to "Hilbert Curve" for a well-blended grainy mixture; it also adds some depth to the chiseled portions.

Thanks for the cool book ends!

smooth print.