Well, a close look at the dioramas shows that they have a considerable level of detail.
---
Diorama 1- A vast siege of a city in dry plains, maybe in a desert. Inside, huddled civilians in rags cower in terror. Outside the city lays a large army, that has blocked the entrances to the city, and has built great war towers around it. The soldiers are well-armed, some riding chariots.
---
Diorama 2- A battle by a large river, running across the diorama. The armies are well clad in broinze weaponry and armour. One on bank, the army is vast, cavalry near the river backed by infantry behind. The army on the othe side of the river is far smaller, with well armoured cavalry on the flank and many spear and shield wielding men in formation near the middle.
---
Diorama 3- A large square of infantry is on a hill. Down below them is a larger army, with impressive armoured horsemen armed with lances. Both sides are outfitted with metal weapons. There is a noticeable difference in skin tone between the armies; those on the hill pale and white, those down below of dark complexion.
---
Diorama 4- Atop a hill, with hastily thrown together fortifications, a group of musket-armed men hold the ground, The hill is near a town, where rifle-armed men are ready to fire on their foes. The attackers are redcoat wearing massed ranks of infantry, disembarking from boats out on the nearby coast.
---
Diorama 5- By far the largest single engagement. Two massive armies are drawn up on green fields. There is a vast variety of colours and shades on the uniforms on both sides sides, but one side at least has a very notable concentration of blue. Large artillery pieces fire out from both sides; the side in blue is on the offensive against the other side, who are behind enormous redoubts and other defensive positions. Smoke from musket and cannon fire covers the battlefield.
---
Diorama 6- This is not a single engagement; the scene shifts continuously. There are no elegant formations here; men in field grey uniforms move forward in small squads, backed by small field guns and huge guns behind the the battlefront. Up against them are men in colourful blue uniforms, also backed by field pieces, or sometimes men in khaki, few in number but laying down fast and effective rifle fire. The battle seems to revolve around the securing of a river; the men in grey are trying to throw the others out of the theatre.
-----
Particular questions about each battle can be asked. Things appear to be developing in each.