I agree with the previous posters. Also, I think that increasing the contrast and saturation would do wonders for the scene.
I've made these mockups of what the scene would look like with said changes. I have included a link to the PSD with the adjustment layers if you wish to apply these changes to your textures. It wasn't a simple saturation increase, I adjusted the saturation and brightness of the reds, yellows, and greens seperately.


http://raccoonrocket.com/blitz/le.psd
I've made these mockups of what the scene would look like with said changes. I have included a link to the PSD with the adjustment layers if you wish to apply these changes to your textures. It wasn't a simple saturation increase, I adjusted the saturation and brightness of the reds, yellows, and greens seperately.


http://raccoonrocket.com/blitz/le.psd