Gary -
Like the way the vehicle came out, nice weathering and dust effect, looks like it's been in the field a while. Have to agree with Al's comments, I'd be willing to bet that those two buckets would have fallen off a long time ago. You should be able to correct the tire angle, maybe build up the ground / dirt a little more.
I think it lends a little imagination that the prisoner was caught across the water, and simply brought back over the footbridge to be interrogated, IMHO it looks fine. I do like how you did the wall, looks good with the water there.
Your uniform colors look a little too "green" to me, but I'm no expert on proper colors, etc. Just an observation, but I do like it overall.
Thanks for sharing! Cheers!
Tim