Single string exercise

It doesn’t look like my last attempt to upload worked, trying again. I tried to follow your instructions, I am not sure I did right, if not let me know where I failed and I will reshoot. I tried using just my wrist as in my last scratch test, but I was too slow, so I reverted back to my normal tremolo technique, there was breaks in my two efforts, let me know what to do next, thank you, Tommo, and have Happy Holidays uf I don’t hear back from you until January. I am very excited to be in this journey with you. It was my D string BTW.