Important: Place Directional Light in your Scene and set the Sky & Light Color to: #D5A371.

I am still battling with understanding the proper workflow since S&Box is migrating away from Hammer, so I can't get the env_sky and lightning to compile properly. So on that note make sure you add Directional Light to your Scene with Sky & Light Color set to: #D5A371.

PS: Don't flame me for the weird Cropped Preview images, I am lazy so I took the pictures in-editor and that's the best I can come up with.
I'll Fix when I get the time