Imperial Russia in colour

Here are five old photographs from imperial Russia. I have tried to make them a little more lively by adding colour:

Tsar Nicholas and Tsarevich Alexei Nikolaevich (1905 official photograph)

Portrait of Maxim Gorky (about  1905)

Dmitri Trepov, Governor-General of St. Petersburg (1905)

A guard in St. Petersburg during the revolutionary year 1905.

Tsar Nicholas II on his morning ride (1905).