Well, in terms of the variety of colors of locomotives and trains, here I agree. First of all, as a photographer on Russian Railways. In India, one way or another you can find different colors of locomotives (my favorite version of the color scheme on the WAG-7), electric trains and diesel trains of different series. But Russian Railways ... This is one and the same color scheme (corporate color of Russian Railways)
. Red-gray colors and it doesn’t matter on which rolling stock. Electric train, diesel train, locomotives of different series. Especially when this starts to rust and become covered with dirt ... It looks very "life-affirming."
There are private companies that have their own color scheme and this adds at least a little variety.