Decided to try a lithophane print finally and I couldn't be more ecstatic with how it turned out so I had to share!
Default .4 mm nozzle, should be able to just load the Bambu CMYK PLA filament and hit print as the profile has all the needed settings to create what you see in the picture.
I used the Bambu cmyk filament bundle with the LED board, and the modified bambu frame below
https://makerworld.com/en/models/38209#profileId-36952
Shoutout to SlowEvo for providing the calibrated filament flush volumes
https://makerworld.com/en/models/27131#profileId-23574
This cannot be sold commercially as this is a licensed character which I do not own rights to