It's a bit hard to see exactly WHAT it is. The mood and feel gives that slimy hive look, but you need to clean it up and add detail. Not all over the place, just to give out a clear hint on what it "might" be. The lightsources are a bit jambled, I don't know if the white glow is glow, or mist. Also, that great yellow thingie is a great lightsource, which should reflect the surrounding and opposite wall.