A year ago, I came across this lovely work by Dominik.
https://www.artstation.com/artwork/aG4J0
At that time, I could only model basic shapes, I didn't know how to apply colors (except simple ones) and in general, I had little knowledge of Blender.
Today it's a bit better.
I'm glad I managed to finish this project.
All models are mine, except for the leaves on the tree (alpha png).
For colors, I used free PBR materials, some elements I slightly painted.