As I am Russian myself, I'd love to share Ivan Smirnov with you. Ivan Smirnov is a true acoustic guitar virtuoso with exceptional sound and tone. I've been on his concerts few times and sometimes shared the same stage with him and his band. Check out those two pieces:
"Long lake", a meditative piece:
"Buddy", a very Russian piece. You can see his son playing keyboards on this one:
And my absolute favourite, "Land where the sun sleeps", a footage from St. Petersburg TV program. His son Mikhail Smirnov is also here, playing keys. On flutes, you can hear Sergei Klevenski, one of the best Russian ethnic flute players, check his solo on 2:19:
Tell me what you think of him.