> fictional underground depot <
You see a very small part of a huge underground depot area, where heavy duty hauling engines get repaired, cleaned, filled up, tuned and upgraded.
I did not put much thought into the design, just started sketching and come up with some ideas in the process. I even did'nt know what will come out after finishing the sketch
> 1 hour A3 sketch, 9 hours photoshop painting <
> Steps GIF [link]