Hi meissen. I love the colours you have achieved on the boarded outhouse. If you still feel you are in the dark about washes ... believe me some sun is coming your way. This is exactly how untreated timber looks after a while. The shingles at first glance look great ... the colours are very relistic. I agree with the over-lapping as well, but as a supporting role this will look fine. What are the hinges and door handle supposed to be? If they are metal, I would rust them up a bit to add to the weathered feeling. Sometimes old rubber was used for this reason as well. So that could e another option!
The figure also looks well and his eyes are distinct and and clearly defined. Great work on his peaked cap as well. The only thing I would touch up is his magazine pouches. As far as i know they are made of leather or canvass sort of material(or are usually painted that way) Your look like they are painted black and weathered like the machine gun .... same with his holster. Another thing that i can see from this picture is inside his cuff is the uniform colour. A dark wash in here would give some depth (nit-pick alert). Great work ..... looking forward to the rest of the scene!