This is a custom art piece based off the Polar Express.
Using custom made assets I used in earlier scenes, I wanted to come up with a tunnel scene that evoked the terror that the demon tunnel in the movie did.
The smoke and lighting were hand drawn in, apart from a physical smoke model I devised to stand in for the hand drawn effects while rendering.
All items within this scene are mine.
If you want to see more, I highly recommend you follow me on Twitter and on YouTube, as I'll be making a video soon.