I have used Blender to set up UVs and separate materials for every element. Texturing in Ssbstance Painter.Render in KeyShot 8.
Postproduction in Photoshop and Lightroom. Author of 3D model: Sandy McPherson.
HDRI and backplates from here: https://hdrmaps.com/hausdorfer-kreuz-autumn-road/
Amazing!!
Gorgeous shots indeed, it's a lovely model as well.