How i can make my scene looks good

I was wondering that is there any way to make good render of scene like some games are created on unity3d have an amazing look how i make my scene render an awesome render i try Externel light mapping tool but is there any other way Thanks for Advance

Nice looking models, good textures, cool lights and shadows. I'm also playing with the ELMT and think you have to carefully consider what are you doing and for what pupose and what do you want to say before baking the light. You could do some work on the already baked lightmap in Photoshop as well.