A few days ago I saw something similar on the web so I decided to create it. I quickly grabbed a bunch of assets from the marketplace and assembled the scene, Although I made it in a few days but the actual time spent on this is not more than 5-6 hours.
I manually placed the volumetric cloud brushes so that part took more time than expected. It is a portfolio piece and I have NO plan to sell it.
Carefully placed fog cards and lights and clouds made this scene special, It was fun as always.