I have a question

Hi, I am a elementary school teacher in South Korea and I am really appreciative for your zoom service. This has been my life savor in this Covid 19 situation.
I am writing this letter to ask a help which is about copyright. I am working on writing a book at the moment regarding blended learning and I want to use some pictures of me using the zoom during class. So, would it be okay for me to carry some pictures in my book? I am adding an example for your reference. Thanks for reading me and I will be waiting for your reply.
Sincerely 고영성 from South Korea