Very nice. If I may make a few suggestions:
1. Drummers, except Royal regiments, wore reverse colors.
2. All small clothes should be red, except for Royal regiments who wore blue breeches, buffed faced units wore buff small clothes. Same for the officers on all.
3. Black was the most common color for marching gaiters till 1759, when wool leggins were worn.
4. If Braddock's troops, small clothes are linen (osnaburg), gaiters would be brown.
5. Officers lace would be metal – either silver or gold. Same for the buttons matching the lace color.