20x20cm, 3.5mm high, so the bambu studio file is not made for a1 mini! (Seems like makerworld don't let me choose the fitting printer models…)

for usage on a1 mini, scale down the x/y directions till it fits.

Print with a layer height of 0.08mm with a base layer of 0.16mm. You can also choose adaptive layer hight for the interlocking, black parts, that are not actual part of the image, to reduce the print time. For that you althought should look for the right high of color beginning in mm below the layer count on the preview layer slider on the right side.

Filaments Used:
PLA BambuLab Matte Charcoal Transmission Distance: 0.6
PLA Redline Marineblue Glitter Transmission Distance: 4
PLA BambuLab Matte Marine Blue Transmission Distance: 2
PLA Redline Blue Silk Transmission Distance: 5
PLA BambuLab Basic Jade White Transmission Distance: 5

Swap Instructions:
Start with Charcoal
At layer #16 (1.36mm) swap to Marineblau Glitzer
At layer #20 (1.68mm) swap to Marine Blue
At layer #26 (2.16mm) swap to Blue Silk
At layer #35 (2.88mm) swap to Jade White for the rest.

For commercial usage and more puzzles:

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