Hallo Glen,
I think it´s a good idea to show various subjects maybe with one theme.
To present the flats I saw a good idea from the flat-museum Goslar, an aluminum case with a lot of small dioramas
illuminated with SMD´s (small LED´s).
It´s easy to transport, easy to set up at a show and it´ll be an eyecatcher
Every case has it´s own theme like "famous fairy tales", "famous people and their pets", "pin-ups", "science fiction". etc. etc.
Each painter would build a very small diorama to a theme every year or some painter produce a small diorama for the case.
For example "famous people and their pets":
1. Albert Schweitzer and his cat in Lambarene (Braune)
2. Friedrich II. and his greyhounds (Timm)
3. Richelieu and his cats
4. Karl V. and his Ulmer bulldog
5. Obelix and his Idefix
6. Pharao and his hunting leopard
7.
It´s only an idea for some new painting and building projects the next years to present at shows as an eyecatcher.
What´s yor opinion
Best regards
Michael