Not a bad start. Looks like you have a really steady hand on the eagle pins.
Get some shading between the fingers; burnt sienna is good for this. Also, place a thinned layer of very dark gray, almost black, along the tops of the boots where the pants are tucked in. It looks like you have some of the pants color on the boots. Paint the inside of the cuffs a darker shade of the sleeve.
It looks like your using an out of the bottle flesh color. Most of these are pretty poor in depicting human skin. Mixing burnt sienna and white will give you a pleasing shade. Also, vallejo's beige red is a nice base caucasian flesh color.
It looks like the second guy has some very dark five o'clock shadow? If so, that's okay, but consider the age of many of the soldiers you're representing, late teens and early twenties for privates and corporals. At that age, many men have not developed a heavy beard yet.
Is there still a seam line on the first guy's right shoulder or is that the light?