Hello and welcome!
Well - you mastered step one: place the colours where they belong to and paint somewhat straight lines.
Here are some more sites with pictures which could be helpful for the details:
http://www.napoleon-online.de/Bilder/Ba ... Bunde1.jpghttp://www.klittich-pfankuch.de/BilderKat/UNI_037.jpghttp://www.napoleon-online.de/Bilder/Ba ... Bunde2.jpghttp://www.bay-4-linieninfanterieregiment.de/One thing that is wrong is the colour of the officers' sash as you have painted it. Before the Russian campaign, Bavarian officer wore a sash made out of silver silk with four bright blue stripes woven in.
This sash was disbanded in early 1812 and replaced with a gorget. To avoid 'etraordinary losses of officers in the field' the gorget had to be covered with bright-blue cloth.
To get more precise answers, you should make more focussed photos. If you don't have a place at home that grants you the right lighting and contrast for making good photos, you might try to build an own, small photobox. Just google for 'how to build a photobox' and you'll find a lot of practical advice.
The one that I use is made out of transparent paper and was actually nearly free-of-charge.
Generally, I also agree that your next step should be to start with shades and highlights in order to give your figures more depth. Of course - if you ask several people, they will give you several advices, depending on their painting style. If you ask me, I would tell you to try them all out and find out which style works best for you and your demands. Some like the muddy, used look of brown-washed figures, some prefer to have them bright and clean as on a historical painting.
Personally, I strongly dislike washes. Okay - they are easy, time-saving stuff.
But you have to keep that stuff under control. Sepia might look good on yellow, but it looks muddy on red and odd on blue. If you can't keep that stuff at the painting zones where it belongs, it may ruin the figure as a whole.
I prefer to paint shades and highlights manually, starting with the basic colour and then darken/lighten it. This requires to paint all the shades by hand, at least in 3 different scales of brightness - but using a fine brush, you will always be able to 'control' the colour.
On the other hand, this method costs way more time.