Looks great! two questions:
1. how do you paint the faces, they look great.
Base coat with Humbrol khaki; Use oils (dark to light) for flesh: umber, burnt sienna, yellow/brown ochre, titanium white...wash with raw umber...blend tones with mars red...
2. how did you paint the german camo and what colors did you use? Humbrol enamels are my fav....get as many shades of earth colors as you can find and experiment....field grey is a great color for plain German uniforms...