For the uniform is superb for now and don't try any fancy stuff yet, and i remember 37 years ago with couple friends modifying old airfix Waterloo figures to diff armies.
You can use this figure for portuguese soldiers as we supplied a lot of uniforms to portuguese and even to Prussia for some of its landwhere units.
That's where Britain's national debt started the napoleonic wars, a population of 6 million financing the other European armies against napoleon.
You can use that for non British units in 1812 period as some units had same uniform.
As the belts part of uniform in art program and darker uniform line to outside of belts to give it depth, as i have the old almark books and funkien books, even older uniform books.
I have never liked much of osprey.
Keep that as ya base uniform then slowly work on it to vary diff armies and styles, and 1 reason we have a lance corporal is because early in war in Spain against napoleon a Spanish lancer lost his horse and he attached himself to an infantry unit, as cavalry had higher status.
He had a rank higher than some inf.