Pop Art of the Late Great Stan Lee. 

Excelsior!

Model is Split into the separate colored layers

There are multiple color swaps required if you only have a single AMS system. You can swap out colors when they are no longer used while the print is going or add pauses to the gcode to swap the filament.

Slice with Classic instead of Arachne because Arachne takes a very very long time.

If printing on X1C, disable purge tower and Automatic Flow Calibration to make sure there is enough room on the bed.

Print at 100% infill with a layer height of 0.04mm with a base layer of 0.16mm

Filaments Used:
PLA PolyTerra Charcoal Black Transmission Distance: 0.3
PLA PolyLite Azure Blue Transmission Distance: 3
PLA PolyLite Red Transmission Distance: 1.5
PLA PolyLite Lime Green Transmission Distance: 3.5
PLA PolyLite White Transmission Distance: 5.1

Swap Instructions:
Start with Charcoal Black
At layer #6 (0.36mm) swap to Blue
At layer #20 (0.92mm) swap to Red
At layer #24 (1.08mm) swap to Green
At layer #29 (1.28mm) swap to White for the rest.