Very nice. A few pointers from my perspective:
First off, no water in Afghanistan EVER looked that blue. And if I'm guesing right, that's supposed to be sewage anyway, isn't it? It is common to have it run right outside of the building.
Secondly, the KIA still has a loaded RPG next to him. Never going to happen.
Third, the guy in the upper floor - is he still clearing the room? I can't tell if the room continues on past the edge of the dio, or if it's actually as depicted. I assume it extends, as there's no door for him to have gotten into the room, and he obviously didn't use the window.Either way, what's he clearing, a roof hatch? Where's his number two? No one clear a room by himself unless it's a short room, which this is not.
Meanwhile his two partners are casually smokin' and jokin' while he takes care of business.
Lastly, the wall with the rug on it need to blend into the groundwork.
I'm not trting to bust your nuts. Overall I like it a lot. It's very well balanced.
A quick fix - remove the figure from where he is in the house. Add a kneeling figure next to the KIA with a laptop. Perhaps he's taking biometrics. And move the RPG away from him. Maybe have it lined up with the other weapons and ammo that were found, and have a fourth dude photographing it. This would make it very realistic, without a whole lot of extra work. Pro Art makes laptops and SLR cameras, Oh, one last thing, out in the provinces, the wall and building are more than likely made from bricks using the local earth. The red bricks in that wall really don't work well with it.
Now someone will find photos to the contrary, but these were my own experiences...
No comment on the tires. I understand you were on a budget.