Another nice cuirassier. I think the trotting with pistol drawn pose is one of my favourite poses of the era, quite evocative.
On the question of sashes, sashes were pretty much the reserve of officers and the rich/nobility/minor gentry/very well to do, so probably limited to command groups and maybe a handful of troopers; widespread sash wearing is another Victorian fancydressification of the period. Same goes for blooming ostrich feathers in hats. British native bird feathers yes, ostrich no (maybe for nobles); unless all those Victorian paintings are correct and the wearing of ostrich feathers in hats is the reason that the British ostrich is extinct.