This is a great shot. I love everything about it. There's so much going on! The steam, the vehicles, the cross, the man in the red hat.... even the plant in the giant pot. There's so much to look at, and I think you got the exposure and composition perfect. Very well done, and an interesting commentary!
I would personally have preferred the main focus to have been on the grid, I keep getting drawn to the passing vehicle and maybe a faster shutter would have shown more detail in the smoke/steam and the background seems a little busy for me (considering the challenge)
i guess this is one of those shots that caused the great 'smoke vs steam' debates...well, it doesn't matter to me. i would have liked this more with more of it, and with a different title. wild colors, interesting lines.
Gee, someone moved past St. Peter in a hurry. Hmm, is this an comparison of Heaven and Hell? Seriously, this is a great study and you must have had fun getting it. Good luck in the Challenge.