The first step was to create a blockout of the level to see if the flow is good. A few things have changed from the initial blockout compared to the final result, but you'll find out soon enough.

The next step was to focus on finishing one room from start to finish to get a base down of how the art should look and feel.

After the first room, I decided to tackle on the lobby, which is the biggest place. The rounded design from the mockup didn't really work out and I decided to go more square-like to give off a "hub" feeling.

With the lobby done for the most part, I moved to the entry / beginning hallway where the player would start their exploration.

I opted to switch from a dark skybox to a bright one to make the colors more vibrant and to make use of volumetric fog to impress the player.

After a very small break, I began working on the final parts of the level, the corridors connecting everything together and a final "district" in the level.

The final stretch on finishing up the business district, adding the "gameplay" (to make you go around the entire level) and a more advanced shader that would fit in the lobby.