My Static Grass Diorama

Note:  I changed the title of this post to something that better reflected the content.

I'm gearing up to go to the local MR show at the end of March.  I'll be promoting MRH and showing the DIY grass applicators featured in the article currently slated for publication next month.

I want to take a static grass diorama to the show so patrons at the show can see a completed scene.  I decided to use extruded pink foam to build my terrain.  This is my first experience with using foam so it has been a learning process.

I built up the terrain by gluing 2" chunks of foam to the top of a 2' X 2' square of 2" foam using expanding foam as adhesive.  The expanding foam sticks really well but it expands so there is some "flash" to trim off once the glue has set but it comes off very easily.  I carved the foam using hobby knives to do much of the initial shaping and my Dremel with an abrasive bit to smooth contours and carve hollows into the base foam.  Foam can be very messy!

I painted the foam with interior house paint that I color matched in the store to a photo I shot near Castle Butte, in the Big Muddy Valley, South Saskatchewan.  Badlands country.

I had the painted diorama drying in the garage but brought it into the house this morning to show the family.  Our youngest was quite taken with "daddy's rock"!  We were looking at some pictures of the Butte area and not really paying attention to Ethan.  When we turned around this is what we saw...

Well this is where it's at so far.  Looks like I had better get some roadbed and track on there ASAP.  I'm thinking about putting a culvert in between the two cuts.  A curved trestle would look even better but not sure I can do a good job of that and still finish in time for the show.  Any thoughts?

EDIT:  Here's what it looked like when we took it to the show.

 There are some close-ups of the rock carving on page two as well.