Over on the Project Aon site here
is a description from lucky fellow who attended a battle day at Joe's house. I was ecstatic to find these pictures as they provide another glimpse of Joe's collection. I'm lucky enough to be custodian of many of the regiments shown, but those I don't have, I am recreating.
The commander of the evil forces on the centre left of the first picture appears to be a Ral Partha necromancer with Minifigs Monk Spirit attendants.
He is glimpsed in a couple of other shots too, below in the graveyard to the right of the turquoise statue.
Anyhow, as I didn't have the evil overlord and attendants, I set about copying Joe's.