Fantastic image! I like the modelling, and the desolate feeling of the guy.
After some staring it struck me: the shadow on the floor has very sharp edges, but it looks very gray. I would only expect shadows like that on a very sunny day, around noon. If the sky is more overcast, as the overall color and intensity suggest, the shadows would be a lot more blurred.
On the character in the middle: maybe it would be nice to get a tiny bit of action in there, like head and shoulders bending down (like he’s very down), or the beginning of a walking motion, or something. Now he looks like some kind of military in line for an inspection or something. If that’s what you want then … well…
Again, keep it up! Henk