Darth Vader and the Empire Wall Art. Darth Vader, Storm Troopers and AT-AT's ready for the battle. (hueforge)

you can scale to any size you want, but make sure you don't change the “Z” axis or it will throw off the color sequence.

Print at 100% infill with a layer height of 0.08mm with a base layer of 0.16mm

Filaments Used:
PLA+ Sunlu Black Transmission Distance: 0.6
PLA+ Sunlu Grey Transmission Distance: 2
PLA+ Sunlu Silver Transmission Distance: 2
PLA+ Sunlu White Transmission Distance: 5

PLA+ Sunlu Red Transmission Distance:

Swap Instructions:
Start with Black
At layer #9 (0.80mm) swap to Grey
At layer #12 (1.04mm) swap to Silver
At layer #14 (1.20mm) swap to White

At layer #19 (1.60mm) swap to Black

At layer #24 (2.00mm) swap to Gray
At layer #27 (2.24mm) swap to Red
At layer #32 (2.64mm) swap to Silver
At layer #34 (2.80mm) swap to White for the rest.