New - great idea and well timed. DOF and background have been covered.
Clean - the car shot is definitely my favourite, an interesting composition with detail and movement.
Open - great find, the subject contains lots to look at. Ideal world would have included either all or none of the pig, but these things are usually dictated by where you can stand.
Distant - really cool shot. The suggestion to go mono makes it really atmospheric but I like the vivid green in the original, it's warm and fresh, if that's not a contradiction.
Nicely done. Good detail on the rock (I think it is). I like it.
And as for the ice luge, we had one of those for my sis-in-law's 50th birthday a few years ago and spent 8 hours tipping vodka down it. If I said it didn't end well, that would be a huge underestimation
I think all three fit the theme well. Rough textures throughout. The second and third have that kind of crude graffiti that you see everywhere nowadays and I guess it's more prominent in the rougher areas of the town etc.