I've also included my initial 'warm up' sketch for this. Now he doesn't look quite like this chap so, credit where it is due, to the grand reference photo I used as a starting point... google image search is a marvellous thing to be sure!
I'm working on a few things I cannot show straight away but I hope to have some Napoleon illustrations to post in the not to distant future... "not tonight", but when things progress and I've pulled my hand out of it's waistcoat so to speak :-)
On an unrelated note (though colour is always related)... I always doubt my colour instincts when I illustrate (and especially when I paint) and I'd love to hone my understanding that bit more. To that end (and to sit next to my colour wheel and swatch books...) I've just bought the full version of "Interaction of Color" (spelt incorrectly, can I get a discount ?) app for the iPad. I only dipped my toe into the coloUred waters but, from what I've seen so far, it looks great! Check out the features if apps are your thing.