Hi Barry,
Very nice work on the Dora and the diorama. Where did you find the figures? I've been looking for some to go with the scratch-built 1/72 scale Paris gun I'm building for the Great War campaign, but all the Great War German soldiers I've found are poor quality rubbery plastic from Hat and Revell. The Paris gun crews were drawn from the Imperial German Navy but wore army uniforms. The figures I have are outfitted with full infantry field kit, all of which has to be cut off, and the rubbery plastic is nearly impossible to sand smooth.
I used HO (1/87 scale) Atlas flex-track for the Paris gun diorama, and had to split it to widen it to 1/72 scale. That leaves a gap in the middle which I'll eventually cover with something - dirt, or ballast, even though real railroaders would consider that bad practice.
Cheers
Dick