Dark Heresy is a pen and paper RPG, I think you're remembering the old specialist game Inquisitor which had awesome 54mm models.
There isn't as much detail on the back so I didn't both taking a picture, I might try at some stage but I'd want to wait for some natural light.
I found some advice online saying that a black background makes the model stand out a lot more on a phone camera and this was my first attempt at doing that with just a plain black t-shirt.