Beautifully done and nice to see some siege troops.
I'll point out the boar standard is wrong. A lot of manufacturers use this type and I suspect it's Republican Roman Army with that box thing underneath.
This is what they actually looked like:
Check out the size too, these standards were around 50cms across which is around the width of a man's shoulders.
Here is a coin of the Aedui from the Viipotal series showing a warrior with boar standard and the pole which it is attached to. Again you can see how large these standards were.
Another coin showing the standard and top of the pole: