Đồ họa nghệ thuật: Người mặc bộ đồ phi hành gia

This is a very forgiving model.  You want a solid black and a good bright white for the bottom and top layers respectively, but in between, any two shades of the same color will work well. Here I use two grays, (JAYO Gray PETG and GEETECH Gray PETG) but Navy Blue and Light Blue or Dark Green and Green etc should all work.  Purple and Pink. Red and Yellow and Green and Yellow also work.

Print at 0.08mm layers with 0.16mm as the first layer. 100% infill (NOT tons of perimeters)
The sliders on the bottom of the image indicate the layer number and millimeter value to swap at (it is the same for all models).

First swap at layer 8, 0.72mm (Black → Darker Color)

Second swap at layer 13, 1.12mm (Darker Color → Lighter Color)

Third Swap at layer 17, 1.44mm (Lighter Color → White)

The let the white print until done.

Enjoy and show me your variations!