I open this task, I and I will take, the seleucid dont have their own variation with Seleucid symbols, instead of that the actual variation have the symbol of their enemies.
I will make some desing for them.
Looking good.
I think that the vertical central parts of the shield should be also painted in white where the anchor is intersecting.
Not a full-opacity white, resembling that the paint didn't stick as much as in the rest of the shield, but enough to distinguish the anchor from far away.