I'm new to your games. I just finished Amnesia the dark descent with my girlfriend (despite it being an SP game, she really enjoyed sitting next to me and experiencing the game together).
the look of the game was great, i really loved the audio, visual, and pretty much everything about it.
recently (through reddit) i stumbled upon Zdzislaw Beksinski's artwork on this website:
http://goo.gl/F2vHX
I'm sure you guy's are probably familiar with his stuff already. I just thought it would be very cool to see a game heavily influenced off this guy's artwork style (visually anyway). I feel like it fits with your aesthetics very well already. (perhaps you've already used him as an influence).
Looking forward to your next game.