Print with 100% infill, 0.08 layer height and 0.16 base layer.

It is also advisable to reduce the retraction to 0.6 mm.

Filaments used:

Bambulab PLA Basic Black with a transmission distance of 0.6.

Bambulab PLA Basic Brown with a transmission distance of 2.0.

Bambulab PLA Basic Bambulab Gray with a transmission distance of 2.0.

Bambulab PLA Basic Orange with a transmission distance of 7.0.

Bambulab PLA Matte Sakura Pink with a transmission distance of 3.0.

Bambulab PLA Basic Beige with a transmission distance of 8.0.

Bambulab PLA Basic Jade White with a transmission distance of 5.0.

Filament changes:

Let's start with black.

Change to brown at layer number 9.

Change to gray at layer number 12.

Change to orange at layer number 14.

Change to light pink at layer number 18.

Change to beige at layer number 21.

Change to white at layer number 24 until the end.