Tips

I'd say shadows can be your friend. Such a scene would appear much darker and have a more dramatic lighting. In your scene there's light everywhere, most likely from that thing we all have that we want to show all of our work and we want all the textures to show so people can see how cool the work. But that always hurts composition. More dark, more moody, more atmospherics effects, I guess shinier surfaces since stuff would be wet. The old Teenage Mutant Ninja Turtles movies from the 90's come to my mind, which would probably have lots of cool mood references.