This is a really nice piece of work. Thanks for the flag painting tutorial. I'm not sure if it's the pictures but are the trousers grey? It's just the Guards wore dark blue trousers once they got to the Crimea (there is photographic evidence of the Coldstream wearing white trousers during the summer at Varna before they finally got to the Crimea).
Anyway, grey or blue, a superbly painted piece.
Pete