Looks great so far mate,

The flag on the ground gives it a dramatic feel and the mud looks great.
Thought about the setting? I think the Ardennes would suit you quite well. A quick bit of research will find you some info about the German's initial victories in overunning the US positions and help you choose a title, perhaps based on one of the battles centred around the villages there?

I also think the corner opposite the flag looks a little empty, how about placing something there like a US mortar or .50 cal on a tripod to fill the space and give the feel of a position being overrun?

By that rationale i'd also have the soldier holding his rifle to give the impression that danger is near (hence he is advancing at a crouch) as its placement on his back gives the impression he is not expecting to see any action (- so why is he crouching?).

A great start here, a couple of tweaks and you'll have a great little scene on your hands!

James