I really dig the concept, Sorken and your scene is well on its way to replicating that :) *Deep breath* With regards to the overall colouring of the scene, you've got it pretty close - with grungy greens and greys. Although your scene appears to have a fairly uniform value overall. If you blur your vision and look at your…
Looking good. I think that it might help you out before lighting if you brighten the materials up a touch too. The walls in the original image aren't naturally that dark - it's the shadows and lighting that bring their overall colour down. Remember that a Diffuse texture is essentially what colour the material will look…