Well, I will try to create all the pieces of a chess, and here is the first concept: the king of Blacks. I like the visual impact of african clothes, so I guess my first choice has been to create an african King for the Blacks.
When I finish this one I think I will create the King of Whites, just to see which way to go in both armies. I was thinking that maybe Whites could be some old japanese style army...I don't know. Still have to think about it a lot.
You can take a look at the stages the picture passed by, at WIP
You'll notice some changes happened: originally the King was intended to hold a XIX c. gun as a symbol of wealth, but after some critics only the spear remained. It itself changed its position too. Green was tried instead of red in the clothes... and many other things not shown in the published pics.
I am specially worried nowadays by values and colour coherence, so please, any critics about these matters, even the harsh ones, are really welcome.