I think that you can improve that piece alot... it is not very difficult, and you flubbed intervals and left phrases and notes hanging without air support. Is that what you played for the audition?? I will leave the serious skewering to the next few posters, but commend your desire to improve and willingness to post a video. Based on that video I wouldn't pick you for an advanced ensemble if there were better players around. It isn't specifically tone, just weak sounding air support and it maybe not nailing the pitch centers.... and THEN... lyricism! It doesn't sound like you are singing! Maybe a bit slow for my tastes, and there is more you can do with dynamics. It starts piano, right?? mf in the middle?