MG42, I have posted a few other dios recently.
Doog: I think you are right about entering them into a dio competition. Without a military theme, a vehicle and a narrative they don't stand a chance, and I haven't even tried as I don't think there is enough P to enter them into IPMS shows. But these are the conventions of scale dioramas, and I don't need to change that. I am glad that on-lines forums exist.
I think like every other scale model, if this was scaled up to 1:1 it would look pretty weird. What I think it does, is convey the right feeling about the space I was modelling, which is what I wanted.
Just out of interest it took a year to make this one, and a lot of that time was making bricks and paving, but there is no real shortcut to doing this kind of work.