Well i learned the ground makeing put it is boring if ground is same color so how could i make ground diffrent color in diffrend place :) .

Ummm, shade it?

Where is the shading putton on polyworks?

Its the "Colour-vertex" button.

What type should the polys be that i wudent fall through the ground?

"normal"
when i use map maker and then polyworks i have that problem...