Pressure and Rush are the best IMO. I really like your screenshot taking style. Very subtle. I'm making Rush my BG.
All nice except for perception. It is just water. But rush is awesome. Pretty boss shots man. But how did you get those colors on Rush?
It's not just water. Believe me. Uhmm.. I believe I used a regenerator and a spartan laser. This made a rough silhouette on the plants and rocks. I also had a spiker go off with a firebomb grenade a little bit from where I was standing, giving it that sort of dark vintage look. There was also a banshee that exploded, which gave the shot a very light purple tone to it.
I really like perception, moss, and pressure. THey're really nice angles and colours are beast. Great job.
Rush looks sweet, I like the subtle style of all of these. It goes to show that you don't need action shots and characters to make a good screenshot.
It's the beam from a spartan laser mixed with various explosions and grenades. That's what I'm going for, man. I got tired of taking action shots. There's only so much you can do with them.