Here you can see my beginning stages in development where I start to get my idea blocked out.

In the 2nd picture you can see where I play around with a small interior scene. In the end

I felt that it took to much focus away from the scene as a whole and removed it.

When I got closer to finishing the structure / first detail pass on the main building I decided to start playing around

with ideas for the background elements. I decided to go with a more sea industrial look.

The result is a giant AC unit that could potentially provide air to the below ground testing facilities.

Here is the final screenshot, I will most likely do some more final tweaks to this scene before release.

Video : Creation Timelapse

Here is a time lapse video I created by taking a screenshot every time I compiled the map :D!

( music credits - "Circle of Friends" from - Honey and Clover )