Great painting.
By co-incidence, I also have a load of these Orcs. I was looking at them earlier in the year, and noticed the 'blue' metal was actually starting to crumble in my hands. I thought, if I don't at least undercoat them, there won't be a collection soon. (I bought 5 of them in 1983, the rest I got off a Mail Order Troll when I was at GW 1988). So I cleaned them up, undercoated, fixed broken bows etc, and got an army standard painter to do them all green! I've got a nice little Old Skool orc army now, only took 30 years. It's got 5 Wyvern riders.
I should ask you to do the general?