I love it, it looks awesome! A good second screenshot compared the first tech demo screenshots from several months ago showing the game will have a variety of color, environments, and atmosphere.
Reminds me a bit of the Eastman Colour system used in the movie industry (1950 - 1980) where red and green were dominant in the rendered spectrum - in video games it would affect the pixel colour count, less processing and quicker rendition due to there being both "additive" and "subtractive" colours.
Full natural hi-res colour rendition would be more demanding on less powerful pc machines, also the reds and greens are easier to 'split' for 3D effect.
Some might view the red + green system as black-and-white with colour layers.
Here is a screen shot in 1920x1200 resolution... the system gives an admired clarity at full screen definition.