Great video! Everyone pay attention to her bow hold–it is very good. My tip would be for you to use more of the front of the hand (index) finger to guide the bow. This would create a cleaner sound for the staccato by using the small muscles to move the bow fast. I would recommend watching the drill videos below:
I’ve seen tremendous results with students getting a better sound for various techniques when they start applying motion and application of the index finger. The bow hold looks great though, nice work!
P.S. I would highly recommend taking lessons with Suni, she is a great teacher!