the last update... so I think ;-)
Again I covered the base with a snow-layer, for smoothing some parts of it. Also some refinements were made; especially for the parts, where the earth-spades are digged in the ground.
Then I painted parts of the base with a light-grey (mixed of the two colors, which I used for the gun too), to make something like a contrast. When the next layer of snow is applied, the darker contrast-color should partly be visible - so my idea.
But I made a mistake while scattering the "finishing" snow-layer over the terrain. It was to much of it, so that the light grey painted base was no more visible. I decided to use my light-brown scattering-material, which I applied with a brush. (mixed with wood-glue and water)
Also the gun got a covering of snow.
I mixed it with water and painted with a brush, then scratched away to get a special effect.
Because it was a "cruel" to put the rubber-rims back onto the wheels, I also covered them with snow, then scratched away to make a coloring difference.
I didnīt painted the rods and tools on the trailarms. This should be better done before glueing them to the gun. ;-)
Also the shooting-chart (for elevating data, on the left side) has no decals and I donīt have a photo-etched variant.
With this low elevation, my gun has the appearance of a bigger anti-tank gun. ;-)
It was fun to build and perhaps my next project is one of Trumpeterīs announced towed artillery beasts, standing in the desert.
Soeren
PS: (a build-feature will follow)

the base after smoothing with a layer of snow

refinements...

refinements (2)

... tracks in the (wet) snow-powder

underside

after painting with the white-grey mixture

completed dio, after finishing with the scatter-material

completed with gun and limber

overview...

the limber