I was bored last night, so I experimented with some abstract shots, and Silhouettes and different locations. None of them are named, and if you need proof that I took them in game, go to my Recent Screenshots. Let me know how I could improve them, or which are your favorites and all that jazz.
The silhouettes are cool looking, but the first silhouette isnt the best due to the fact that the figure is facing the screen- the guns (back and in hand) and arms all morph together to make a big blob when it is facing the screen.
I personally don't like it when silhouettes are made while the Spartan's gun is up. I think they should always be lowered either by reloading or going Local. It looks more natural that way.