As with Historyscape I probably wouldn't be able to devote too much time to this, but if that's cool, I'd be interested. All the first three look cool, and I could probably help out a bit with all of them, but Greek is calling to me.
Just a thought - maybe, since there will probably be a lot of larger than life characters here, design these to be compatible with
C3G Superscape, rather than Classic. Heroes and monsters would be fine with either, but good luck balancing Zeus and the other Gods for Classicscape!