If you like this then Gary Karr is the guy to listen to, not that this guy isn't great too.
When I watch someone like this I can see all the things he's doing right technique wise but I slip straight into my shoddy way of doing it, getting that left elbow up is my biggest fail, this guy has it nailed bang on, elbow up one way as the bow hand heads the opposite way. Brilliant.
The intonation in thumb position is fantastic, hours and hours of practice gone into that.
Thanks for sharing Ambient.