Looking alot better Vim, but it's pretty obvious your using a spotlight. In my opinion, you need to bump up the GI to lighten up the room a bit if your using GI. If your not using GI I reccomend using many small Spotlights ( as decoration ) around the scene, and how about using an ambient to fill it in a little bit.

I'm also curious if you would consider darkening the wood color of the pinball machine. It's clashing with the floor a bit in my honest opinion.

All of this of course is just a reccomendation.