Brightened Screenshots now uploaded to imgur
http://imgur.com/a/pAvgq
The link is also available in the main post as a hyperlink.
On the topic on the only bright screenshot your voices have been heard and I promise that the lighting in this room will be improved prior to release. I disagree that theres no lightsource though, as there's clearly barricaded windows in the background which should give out a little light through the gaps, though not near as much in the screenshot.
Regarding the flat look I might try adding a bump map to the AAMFP bricks to make them seem a little less flat, though that will be considered as polish so I cant guarantee it.
Thanks for the feedback.