I need to find some properties which can make good evaluation functions. So, how can make good evaluation functions?

I am working with a mancala(kalah) game. I made the board and now want to move to the game logic.
Can anyone suggest how I should start with?

Another Question: I want to draw a hole full with ball. The number of balls can increase dynamically. How can I draw them(set Coordinate of ball), so that it seems realistic.

Thanks in advance
Mahfuz