The process of making a diorama is one of continued refinement.
First you start with the broad strokes and you work continually
down to the details. Now you are starting to get into the details
of the landscape.
Note that I have a video of this stage of the tutorial at the bottom of this page.
Once your diorama has completely dried. It is important that it
is completely dry because you will be applying water and various
liquids to it. If it is not dry the added water can make the shell
sag and distort your landscape.
Now examine your landscape. Do you remember where you want the
different types of terrain to go? Yes you do. You have made sketches
that explain all this to you. Now you will apply a base coat of
colored paint that mimics the different terrain.
Apply a coat of green paint to where the grass and trees will go.
Apply a tan colored paint to areas that will have dirt.
Apply grey to any areas that will have lots of rocks or cliffs..
Apply blue to any water areas.
Think about what you want it to look like and paint the colors
accordingly. This is not finish paint. What I mean is that where
you paint it green thats not the grass.You will apply grass over
this but some of the base will show through the grass and having
painted this green will give a uniform look . You dont want the
white of the plastered paper towels to show through. You must completely
cover all of the working area of the diorama with a colored paint.
The paint doesn't have to be dry. You can continue right on to
the next stage.