Hi Dieter,
No problem.
Tall Grass:
I used bristles from a paint brush (used for painting walls
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). The brush I think is not the synthetic type, I think its horse hair(?)...I got it cheap, it cost me only 50 cents.
First I decided on which area to place the tall grass and then put holes on the ground using toothpick. I then cut about knee length (1/35) group of bristles and plant them into the holes. I glue the bristles using PVA glue.
Static Grass:
Just cover the desired area with dlited PVA glue then scatter the static grass. After laying them, gently blow on the glued static grass to make them stand.
Grass Clumps:
First I got a small amount of wall putty or spackle and then placed them on areas where you think the grass clumps should be. I mixed small amounts of diluted PVA on the wall putty to make it soft and at the same time sticky. I cut the same bristles for the long grass, but this time I just used the tips...cut the length as necessary. The cut grass were planted on the diluted wall putty (initially they would stand straight). Using the tip of your finger press on the tip of the standing bristles and then gently make a round motion until the bristles spread.
Once dry, I placed PVA glue again on the grass clump so that I could apply some static grass on top.
Ground work:
The ground work is made from layers of styro foam covered with wall putty. When the wall putty is dry, I painted it with black and red brown acrylic paint. I applied diluted PVA glue over the entire surface of the ground before I poured real earth.
I painted and washed the real earth with the desired ground color.
Hope this helps...I know what I wrote down may not be very clear, if so just post your questions here or PM me.
Cheers and thanks for looking