I'm the violist of the Royal Concertgebouw Orchestra and had an experience with principal viola at the Limbrug Symphony orchestra
I've been teaching for many years and have experiences for outreach music program as well. It is hard to find the right sound on the viola, so I can help you with my experiences through this instrument to develop your sound, musicality, where to release of your body which is important, but difficult to do release your tension on the stage. And I can help you to perform orchestra excerpts to prepare for the auditions.
Very helpful :-)