Hee, hee...

For the grass I used Fur>Grass (how simple it is!) and then just tried all possible combos of colors/twists and whatever there is to customize. Also I sculpted the plane to make it rough and irregular, with all little bumps and hummocks and hillocks. Since the plane was very big, I had to make a very large number of grass blades( 1 mln) and on my P4-1800 with 512DDRAM it took ~15 min. to render with MentalRay.
Tree was PaintEffects converted to polygon and it has a texture assigned to it that is supposed to look like bark.

My scene will probably be a rusted peace of armor(or full Greek armor) with some rusted stuff around/in it, like a sword or arrow.