Thanks for the valuable feedback and encouragement! My second attempt is to unstuck the base of the index but my right hand coordination seems off, thus the jerky sounding note. Perhaps I am too tense.
When doing the vibrato, should my fingers rock backwards and bending my knuckle? I think I don’t do that, causing the width of the vibrato to be narrow. What do you think?
Here’s a video with the second attempt:
Any feedback greatly appreciated!