After re-reading my post, I realized I may have been a bit confusing. :/
So, just to clear anything up: I would prefer if each block had 8 different colors in it (since there are 8 different flying geese units).
My sample block only has four colors in it because at the time that was all I had. I am sorry for any confusion!
P.S. If you happened to already have the blocks made with four colors, do not worry! I will use them anyway :)