Lonely Tree - a painting by Nettie Andrews. 5x7in, just as the original.

I have also created a frame that fits this model.

If you are not planning to use the same filaments, use some sort of black, dark gray, light gray, then white.

Print at 100% infill with a layer height of 0.08mm with a base layer of 0.16mm

Filaments Used:
PLA BambuLab Matte Charcoal Transmission Distance: 0.6
PLA PolyTerra Fossil Grey Transmission Distance: 0.3
PLA BambuLab Matte Ash Gray Transmission Distance: 1.5
PLA BambuLab Matte Ivory White Transmission Distance: 4

Swap Instructions:
Start with Charcoal
At layer #14 (1.2mm) swap to Fossil Grey
At layer #27 (2.24mm) swap to Ash Gray
At layer #29 (2.4mm) swap to Ivory White for the rest.