The "joltii gusari", called yellow hussars were located in the north-eastern Ukraine and changed their dolmans r.a. in 1760-62 into the black ones. I preferred this uniforms, but also because I am really a great fan of the Ukraine.
Look at the banner; there is written "S NAMI BOG" - "god with us"- and is a banner of the 16. cent. - but till now I couldn´t ever find any sources about the russian hussar flags. I chosed a religious one, inspirated by the orthodox iconic painting.