I found Cyborgpotato's Prawn design on his own D9 build on Flickr and I wanted to try build it for myself. I did so and it's a really sweet design.
This scene isn't really based on anything specific from the movie but I tried to keep some of the same themes (like the slum in the background and garbage all over the place). This depicts a Prawn getting ready to gun down an MNU Security Force officer.
Guns are by Brickarms, Pizza Box tile is made by Eclipsegrafx, and the minifigure accessories are from Minfig Cat (vest), Brickforge (helmet), and Brickwarriors (kneepads).