Stealth game environment design

The main issue here is the lighting, contrast it with a previous level we did before. The image is below. The lighting in our sewer level seems off and quite hard, Props don’t add to that much to the visuals off the game(lets not debate about this). Even if you remove every prop and building in GTA 5 and just leave the grass and sky, you would still get a beautiful looking scene. Look at Koola work, there is barely any props in his level. Any help with UE4 lighting/post would be greatly appreciated.

The game has many features that allows you to see where the guards are. Guards will be highlighted, sound etc. You can track enemy movement. Gadgets such as EMP grenades and magnets to steal keys off guard will be implemented. We have a few features but we’re more interested in producing a solid game instead of a bunch of content.