Well done. I made my first Rambo 3 display back in 2008 with my hand made Hibben Rambo 3. ive since bought another knife from Gil and made another. I have displays for all 4 rambo movie knives all with coveres, I took the covers off for the photos. The thing to remember i think is not to clutter the diorama displays, you have done well, as too much takes the emphasis away from the main piece inside...keep them coming.
Rambo 4 machete, with metal filings from Gil's workshop.
Rambo First Blood Part 2 display with Punji stakes and barbed wire.
First Blood knife with rocks and leaves from Hope BC where a lot of the movie was filmed, and a matton edge hand made knife.
It looks like you took inspiration from my Rambo 3 display (The bullets and scorpion) that I made in 2008...it looks great. I too was going to use propper display cases too, but I had a go at making my own...I will however replace them very shortly.
I actually keep a RIII knife hidden near the bed for immediate defense purpose.
The edge has kept well over many years and remains razor sharp.
It's a frightening looking blade and the handguard is extremely robust, you can
get a serious grip on it.