just an old boat shop building i took a picture of 

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 Silver Transmission Distance: 2
    PLA+ Sunlu Blue Transmission Distance: 4
    PLA+ Sunlu White Transmission Distance: 5

Swap Instructions:
    Start with Black
    At layer #4 (0.4mm) swap to Silver
    At layer #5 (0.48mm) swap to Blue
    At layer #6 (0.56mm) swap to White for the rest.