The complete unit awaiting shading/varnishing and texture on the base.
At the back you can see the heavies which still haven't been christened as I couldn't make it to the last club meeting. Hopefully, this Friday I'll be able to christen both units!
This seems to have answered my query, although not conclusively, as the rider is in post 1812 uniform. The saddle blanket is clearly trimmed in white, conforming with epaulettes, shako cords and shako band. It looks like I'll have to make some changes *sigh!*