Andrey.
Being honest, the men even then in the 19th Century and despite lower life expectancy and diet issues etc. still did not look that old. There are some well publicised old photos available showing French veterans of the Napoleonic Wars being photographed in their old uniforms around the 1850'-60's period and none of them look as old as the face on this bust and by then, even the youngest of Napoleon's veterans must have been around 65 years old.
The face on this bust looks more like the guy we keep seeing here on PF as the crying Soviet WW2 vet holding the flowers....and how old is he?
Each to their own however as I said, the rest of the bust is superb in terms of uniform and bearskin details.
Gary